FPCN11 CWTO 181930
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 3:30 p.m. EDT Monday 18 May 2026 for tonight
Tuesday and Tuesday night.
The next scheduled forecast will be issued at 5:00 a.m. EDT Tuesday.

City of Toronto.
Tonight..Clear. Increasing cloudiness this evening then 40 percent
 chance of showers late this evening and overnight. Risk of a
 thunderstorm late this evening. Fog patches developing overnight.
 Wind southwest 30 km/h gusting to 50 becoming light overnight.
 Low 18.
Tuesday..Mainly cloudy. 30 percent chance of showers late in the
 morning and in the afternoon. Risk of a thunderstorm late in the
 afternoon. Fog patches dissipating in the morning. Wind becoming
 west 30 km/h gusting to 50 in the morning. High 29. Humidex 34. UV
 index 9 or very high.
Tuesday night..Mainly cloudy with 60 percent chance of showers. Risk
 of a thunderstorm in the evening. Wind southwest 20 km/h gusting to
 40 becoming light late in the evening. Wind becoming northwest 20
 gusting to 40 overnight. Low 10.

Windsor - Leamington - Essex County.
Tonight..Partly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 20.
Tuesday..Becoming cloudy in the morning with 30 percent chance of
 showers late in the morning and early afternoon. Showers beginning
 in the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 60 late in the morning. High 30. Humidex 38. UV index 6
 or high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 12.

Chatham-Kent - Rondeau Park.
Tonight..Mainly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 19.
Tuesday..Becoming cloudy in the morning with 30 percent chance of
 showers late in the morning and early afternoon. Showers beginning
 in the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 60 late in the morning. High 30. Humidex 38. UV index 6
 or high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 9.

Sarnia - Petrolia - Western Lambton County.
Tonight..Mainly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 18.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and early afternoon. Showers beginning in the afternoon.
 Risk of a thunderstorm late in the afternoon. Wind becoming south
 20 km/h gusting to 40 then southwest 40 gusting to 60 late in the
 morning. High 30. Humidex 36. UV index 6 or high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 9.

Watford - Pinery Park - Eastern Lambton County.
Tonight..Partly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 19.
Tuesday..Becoming cloudy in the morning with 30 percent chance of
 showers late in the morning and early afternoon. Showers beginning
 in the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming south 20 km/h gusting to 40 then southwest 40 gusting to 60
 late in the morning. High 30. Humidex 38. UV index 6 or high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 8.

Rodney - Shedden - Western Elgin County.
Tonight..Mainly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 18.
Tuesday..Becoming cloudy in the morning with 30 percent chance of
 showers late in the morning and early afternoon. Showers beginning
 in the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming south 20 km/h gusting to 40 then southwest 40 gusting to 60
 late in the morning. High 29. Humidex 37. UV index 6 or high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 8.

St. Thomas - Aylmer - Eastern Elgin County.
Tonight..Mainly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 18.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and early afternoon. Showers beginning in the afternoon.
 Risk of a thunderstorm late in the afternoon. Wind becoming south
 20 km/h gusting to 40 then southwest 40 gusting to 60 late in the
 morning. High 29. Humidex 37. UV index 9 or very high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 8.

Strathroy - Komoka - Western Middlesex County.
Tonight..Mainly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 19.
Tuesday..Becoming cloudy in the morning with 30 percent chance of
 showers late in the morning and early afternoon. Showers beginning
 in the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming south 20 km/h gusting to 40 then southwest 40 gusting to 60
 late in the morning. High 30. Humidex 38. UV index 6 or high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 8.

London - Parkhill - Eastern Middlesex County.
Tonight..Mainly cloudy with 60 percent chance of showers. Risk of a
 thunderstorm this evening. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 late this evening. Low 19.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and early afternoon. Showers beginning in the afternoon.
 Risk of a thunderstorm late in the afternoon. Wind becoming south
 20 km/h gusting to 40 then southwest 40 gusting to 60 late in the
 morning. High 30. Humidex 37. UV index 9 or very high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 20 km/h gusting to 40 becoming light near midnight.
 Wind becoming north 20 gusting to 40 after midnight. Low 7.

Simcoe - Delhi - Norfolk.
Tonight..Increasing cloudiness early this evening. 40 percent chance
 of showers late this evening and overnight. Risk of a thunderstorm
 late this evening. Wind southwest 30 km/h gusting to 50 becoming
 light after midnight. Low 18.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and in the afternoon. Showers beginning late in the
 afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 70 late in the morning. High 29. Humidex 34. UV index 9
 or very high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 70 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 9.

Dunnville - Caledonia - Haldimand.
Tonight..Increasing cloudiness. 40 percent chance of showers late
 this evening and overnight. Risk of a thunderstorm late this
 evening. Wind southwest 30 km/h gusting to 50 becoming light after
 midnight. Low 18.
Tuesday..A mix of sun and cloud with 30 percent chance of showers
 late in the morning and in the afternoon. Showers beginning late in
 the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 70 late in the morning. High 29. Humidex 35. UV index 9
 or very high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 70 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 10.

Woodstock - Tillsonburg - Oxford County.
Tonight..Increasing cloudiness early this evening. 40 percent chance
 of showers late this evening and overnight. Risk of a thunderstorm
 late this evening. Wind southwest 30 km/h gusting to 50 becoming
 light after midnight. Low 19.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and in the afternoon. Showers beginning late in the
 afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 70 late in the morning. High 30. Humidex 36. UV index 9
 or very high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 70 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 7.

Brantford - County of Brant.
Tonight..Increasing cloudiness. 40 percent chance of showers late
 this evening and overnight. Risk of a thunderstorm late this
 evening. Wind southwest 30 km/h gusting to 50 becoming light after
 midnight. Low 18.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and in the afternoon. Showers beginning late in the
 afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 70 late in the morning. High 30. Humidex 36. UV index 9
 or very high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 70 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 7.

Niagara Falls - Welland - Southern Niagara Region.
Tonight..Clear. Increasing cloudiness early this evening then
 40 percent chance of showers late this evening and overnight. Risk
 of a thunderstorm late this evening. Wind southwest 30 km/h gusting
 to 50 becoming light after midnight. Low 18.
Tuesday..A mix of sun and cloud with 30 percent chance of showers
 late in the morning and in the afternoon. Showers beginning late in
 the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 70 late in the morning. High 29. Humidex 36. UV index 9
 or very high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 70 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 10.

St. Catharines - Grimsby - Northern Niagara Region.
Tonight..Clear. Increasing cloudiness early this evening then
 40 percent chance of showers late this evening and overnight. Risk
 of a thunderstorm late this evening. Wind southwest 30 km/h gusting
 to 50 becoming light after midnight. Low 18.
Tuesday..A mix of sun and cloud with 30 percent chance of showers
 late in the morning and in the afternoon. Showers beginning late in
 the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 70 late in the morning. High 30. Humidex 37. UV index 9
 or very high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 70 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 13.

City of Hamilton.
Tonight..Increasing cloudiness. 40 percent chance of showers late
 this evening and overnight. Risk of a thunderstorm late this
 evening. Wind southwest 30 km/h gusting to 50 becoming light after
 midnight. Low 18.
Tuesday..A mix of sun and cloud with 30 percent chance of showers
 late in the morning and in the afternoon. Showers beginning late in
 the afternoon. Risk of a thunderstorm late in the afternoon. Wind
 becoming southwest 20 km/h gusting to 40 then increasing to 40
 gusting to 70 late in the morning. High 30. Humidex 35. UV index 9
 or very high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 70 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 10.

Burlington - Oakville.
Tonight..Clear. Increasing cloudiness early this evening then
 40 percent chance of showers late this evening and overnight. Risk
 of a thunderstorm late this evening. Fog patches developing
 overnight. Wind southwest 30 km/h gusting to 50 becoming light
 overnight. Low 19.
Tuesday..A mix of sun and cloud. 30 percent chance of showers late in
 the morning and in the afternoon. Risk of a thunderstorm late in the
 afternoon. Fog patches dissipating in the morning. Wind becoming
 west 30 km/h gusting to 50 in the morning. High 29. Humidex 34. UV
 index 9 or very high.
Tuesday night..Mainly cloudy with 60 percent chance of showers. Risk
 of a thunderstorm in the evening. Wind southwest 20 km/h gusting to
 40 becoming light late in the evening. Wind becoming northwest 20
 gusting to 40 overnight. Low 11.

Halton Hills - Milton.
Tonight..Increasing cloudiness. 40 percent chance of showers late
 this evening and overnight. Risk of a thunderstorm late this
 evening. Fog patches developing overnight. Wind southwest 30 km/h
 gusting to 50 becoming light overnight. Low 18.
Tuesday..Mainly cloudy. 30 percent chance of showers late in the
 morning and in the afternoon. Risk of a thunderstorm late in the
 afternoon. Fog patches dissipating in the morning. Wind becoming
 west 30 km/h gusting to 50 in the morning. High 30. Humidex 35. UV
 index 8 or very high.
Tuesday night..Mainly cloudy with 60 percent chance of showers. Risk
 of a thunderstorm in the evening. Wind southwest 20 km/h gusting to
 40 becoming light late in the evening. Wind becoming northwest 20
 gusting to 40 overnight. Low 9.

Mississauga - Brampton.
Tonight..Clear. Increasing cloudiness early this evening then
 40 percent chance of showers late this evening and overnight. Risk
 of a thunderstorm late this evening. Fog patches developing
 overnight. Wind southwest 30 km/h gusting to 50 becoming light
 overnight. Low 19.
Tuesday..Mainly cloudy. 30 percent chance of showers late in the
 morning and in the afternoon. Risk of a thunderstorm late in the
 afternoon. Fog patches dissipating in the morning. Wind becoming
 west 30 km/h gusting to 50 in the morning. High 30. Humidex 35. UV
 index 9 or very high.
Tuesday night..Mainly cloudy with 60 percent chance of showers. Risk
 of a thunderstorm in the evening. Wind southwest 20 km/h gusting to
 40 becoming light late in the evening. Wind becoming northwest 20
 gusting to 40 overnight. Low 9.

Caledon.
Tonight..Increasing cloudiness. Showers beginning early this evening
 and ending after midnight then 40 percent chance of showers
 overnight. Risk of a thunderstorm this evening and after midnight.
 Fog patches developing overnight. Wind southwest 30 km/h gusting to
 50 becoming light after midnight. Low 18.
Tuesday..Cloudy with 40 percent chance of showers. Showers beginning
 late in the afternoon. Risk of a thunderstorm. Fog patches
 dissipating in the morning. Wind becoming south 20 km/h gusting to
 40 in the morning then southwest 40 gusting to 60 near noon.
 High 29. Humidex 36. UV index 8 or very high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 60 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 8.

Vaughan - Richmond Hill - Markham.
Tonight..Clear. Increasing cloudiness this evening then 40 percent
 chance of showers late this evening and overnight. Risk of a
 thunderstorm late this evening. Fog patches developing overnight.
 Wind southwest 30 km/h gusting to 50 becoming light overnight.
 Low 19.
Tuesday..Mainly cloudy. 30 percent chance of showers late in the
 morning and in the afternoon. Risk of a thunderstorm late in the
 afternoon. Fog patches dissipating in the morning. Wind becoming
 west 30 km/h gusting to 50 in the morning. High 30. Humidex 36. UV
 index 9 or very high.
Tuesday night..Mainly cloudy with 60 percent chance of showers. Risk
 of a thunderstorm in the evening. Wind southwest 20 km/h gusting to
 40 becoming light late in the evening. Wind becoming northwest 20
 gusting to 40 overnight. Low 8.

Newmarket - Georgina - Northern York Region.
Tonight..Becoming cloudy this evening with showers changing to
 40 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and after midnight. Fog patches developing overnight.
 Wind southwest 30 km/h gusting to 50 becoming light after midnight.
 Low 18.
Tuesday..Cloudy with 40 percent chance of showers. Showers beginning
 late in the afternoon. Risk of a thunderstorm. Fog patches
 dissipating in the morning. Wind becoming south 20 km/h gusting to
 40 in the morning then southwest 40 gusting to 60 near noon.
 High 29. Humidex 35. UV index 8 or very high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 60 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low 8.

Pickering - Oshawa - Southern Durham Region.
Tonight..Clear. Increasing cloudiness this evening then 40 percent
 chance of showers late this evening and overnight. Risk of a
 thunderstorm late this evening and after midnight. Fog patches
 developing overnight. Wind southwest 20 km/h gusting to 40 becoming
 light late this evening. Wind becoming southwest 20 gusting to 40
 before morning. Low 16.
Tuesday..Mainly cloudy. 60 percent chance of showers late in the
 morning and in the afternoon. Risk of a thunderstorm late in the
 afternoon. Fog patches dissipating in the morning. Wind west 30 km/h
 gusting to 50. High 27. Humidex 32. UV index 9 or very high.
Tuesday night..Mainly cloudy with 60 percent chance of showers. Risk
 of a thunderstorm in the evening. Wind west 30 km/h gusting to 50
 becoming light near midnight. Wind becoming north 20 gusting to 40
 after midnight. Low 10.

Uxbridge - Beaverton - Northern Durham Region.
Tonight..Clear. Increasing cloudiness this evening then 40 percent
 chance of showers late this evening and overnight. Risk of a
 thunderstorm late this evening and after midnight. Fog patches
 developing overnight. Wind southwest 20 km/h gusting to 40 becoming
 light late this evening. Low 17.
Tuesday..Cloudy with 60 percent chance of showers. Risk of a
 thunderstorm late in the afternoon. Fog patches dissipating in the
 morning. Wind becoming southwest 20 km/h gusting to 40 in the
 morning. High 28. Humidex 33. UV index 8 or very high.
Tuesday night..Mainly cloudy with 60 percent chance of showers. Risk
 of a thunderstorm in the evening. Wind southwest 20 km/h gusting to
 40 becoming light in the evening. Wind becoming north 20 gusting to
 40 after midnight. Low 7.

Goderich - Bluewater - Southern Huron County.
Tonight..Becoming cloudy this evening with 60 percent chance of
 showers this evening and overnight. Risk of a thunderstorm this
 evening. Fog patches developing overnight. Wind southwest 40 km/h
 gusting to 60 diminishing to 20 gusting to 40 this evening then
 becoming light after midnight. Low 19.
Tuesday..Cloudy with 30 percent chance of showers late in the morning
 and early afternoon. Showers beginning in the afternoon. Risk of a
 thunderstorm late in the afternoon. Fog patches dissipating in the
 morning. Wind becoming southwest 20 km/h gusting to 40 then
 increasing to 40 gusting to 60 late in the morning. High 28. Humidex
 36. UV index 6 or high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind west 20 km/h gusting to 40 becoming light in the evening. Wind
 becoming northwest 20 gusting to 40 after midnight. Low plus 5.

Wingham - Blyth - Northern Huron County.
Tonight..Becoming cloudy this evening with 60 percent chance of
 showers this evening and overnight. Risk of a thunderstorm this
 evening. Fog patches developing overnight. Wind southwest 40 km/h
 gusting to 60 diminishing to 20 gusting to 40 this evening then
 becoming light after midnight. Low 18.
Tuesday..Cloudy with 30 percent chance of showers late in the morning
 and early afternoon. Showers beginning in the afternoon. Risk of a
 thunderstorm late in the afternoon. Fog patches dissipating in the
 morning. Wind becoming southwest 20 km/h gusting to 40 then
 increasing to 40 gusting to 60 late in the morning. High 28. Humidex
 36. UV index 6 or high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind west 20 km/h gusting to 40 becoming light in the evening. Wind
 becoming northwest 20 gusting to 40 after midnight. Low plus 5.

Stratford - Mitchell - Southern Perth County.
Tonight..Increasing cloudiness early this evening. 60 percent chance
 of showers. Risk of a thunderstorm this evening. Fog patches
 developing overnight. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 after midnight. Low 19.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and early afternoon. Showers beginning in the afternoon.
 Risk of a thunderstorm late in the afternoon. Fog patches
 dissipating in the morning. Wind becoming southwest 20 km/h gusting
 to 40 then increasing to 40 gusting to 60 late in the morning.
 High 30. Humidex 38. UV index 8 or very high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind west 20 km/h gusting to 40 becoming light in the evening. Wind
 becoming northwest 20 gusting to 40 after midnight. Low plus 5.

Listowel - Milverton - Northern Perth County.
Tonight..Becoming cloudy this evening with 60 percent chance of
 showers this evening and overnight. Risk of a thunderstorm this
 evening. Fog patches developing overnight. Wind southwest 40 km/h
 gusting to 60 diminishing to 20 gusting to 40 this evening then
 becoming light after midnight. Low 18.
Tuesday..Cloudy with 30 percent chance of showers late in the morning
 and early afternoon. Showers beginning in the afternoon. Risk of a
 thunderstorm late in the afternoon. Fog patches dissipating in the
 morning. Wind becoming southwest 20 km/h gusting to 40 then
 increasing to 40 gusting to 60 late in the morning. High 27. Humidex
 34. UV index 6 or high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind west 20 km/h gusting to 40 becoming light in the evening. Wind
 becoming northwest 20 gusting to 40 after midnight. Low plus 5.

Kitchener - Cambridge - Region of Waterloo.
Tonight..Increasing cloudiness early this evening. 60 percent chance
 of showers. Risk of a thunderstorm this evening. Fog patches
 developing overnight. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 after midnight. Low 18.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and early afternoon. Showers beginning in the afternoon.
 Risk of a thunderstorm late in the afternoon. Fog patches
 dissipating in the morning. Wind becoming southwest 20 km/h gusting
 to 40 then increasing to 40 gusting to 60 late in the morning.
 High 29. Humidex 34. UV index 8 or very high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind west 20 km/h gusting to 40 becoming light in the evening. Wind
 becoming northwest 20 gusting to 40 after midnight. Low 6.

Guelph - Erin - Southern Wellington County.
Tonight..Increasing cloudiness early this evening. 60 percent chance
 of showers. Risk of a thunderstorm this evening. Fog patches
 developing overnight. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 after midnight. Low 18.
Tuesday..Mainly cloudy with 30 percent chance of showers late in the
 morning and early afternoon. Showers beginning in the afternoon.
 Risk of a thunderstorm late in the afternoon. Fog patches
 dissipating in the morning. Wind becoming southwest 20 km/h gusting
 to 40 then increasing to 40 gusting to 60 late in the morning.
 High 28. Humidex 33. UV index 8 or very high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind west 20 km/h gusting to 40 becoming light in the evening. Wind
 becoming northwest 20 gusting to 40 after midnight. Low 6.

Mount Forest - Arthur - Northern Wellington County.
Tonight..Increasing cloudiness early this evening. 60 percent chance
 of showers. Risk of a thunderstorm this evening. Fog patches
 developing overnight. Wind southwest 40 km/h gusting to 60
 diminishing to 20 gusting to 40 this evening then becoming light
 after midnight. Low 17.
Tuesday..Cloudy with 30 percent chance of showers late in the morning
 and early afternoon. Showers beginning in the afternoon. Risk of a
 thunderstorm late in the afternoon. Fog patches dissipating in the
 morning. Wind becoming southwest 20 km/h gusting to 40 then
 increasing to 40 gusting to 60 late in the morning. High 26. Humidex
 33. UV index 6 or high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind west 20 km/h gusting to 40 becoming light in the evening. Wind
 becoming northwest 20 gusting to 40 after midnight. Low plus 4.

Orangeville - Grand Valley - Southern Dufferin County.
Tonight..Increasing cloudiness. Showers beginning early this evening
 and ending after midnight then 40 percent chance of showers
 overnight. Risk of a thunderstorm this evening and after midnight.
 Fog patches developing overnight. Wind southwest 30 km/h gusting to
 50 becoming light after midnight. Low 18.
Tuesday..Cloudy with 40 percent chance of showers. Showers beginning
 late in the afternoon. Risk of a thunderstorm. Fog patches
 dissipating in the morning. Wind becoming south 20 km/h gusting to
 40 in the morning then southwest 40 gusting to 60 near noon.
 High 27. Humidex 35. UV index 6 or high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 60 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low plus 5.

Shelburne - Mansfield - Northern Dufferin County.
Tonight..Increasing cloudiness. Showers beginning early this evening
 and ending after midnight then 40 percent chance of showers
 overnight. Risk of a thunderstorm this evening and after midnight.
 Fog patches developing overnight. Wind southwest 30 km/h gusting to
 50 becoming light after midnight. Low 18.
Tuesday..Cloudy with 40 percent chance of showers. Showers beginning
 late in the afternoon. Risk of a thunderstorm. Fog patches
 dissipating in the morning. Wind becoming south 20 km/h gusting to
 40 in the morning then southwest 40 gusting to 60 near noon.
 High 27. Humidex 35. UV index 6 or high.
Tuesday night..Showers ending after midnight then mainly cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 60 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low plus 5.

Innisfil - New Tecumseth - Angus.
Tonight..Becoming cloudy this evening with showers changing to
 40 percent chance of showers after midnight. Risk of a thunderstorm
 this evening and after midnight. Fog patches developing overnight.
 Wind southwest 30 km/h gusting to 50 becoming light after midnight.
 Low 17.
Tuesday..Cloudy with 40 percent chance of showers. Showers beginning
 late in the afternoon. Risk of a thunderstorm. Fog patches
 dissipating in the morning. Wind becoming south 20 km/h gusting to
 40 in the morning then southwest 40 gusting to 60 near noon.
 High 28. Humidex 36. UV index 6 or high.
Tuesday night..Showers ending after midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening
 and after midnight. Wind southwest 40 km/h gusting to 60 diminishing
 to 20 gusting to 40 in the evening then becoming northwest 20
 gusting to 40 after midnight. Low plus 5.

Saugeen Shores - Kincardine - Southern Bruce County.
Tonight..Becoming cloudy this evening with showers changing to
 40 percent chance of showers near midnight. Risk of a thunderstorm
 this evening. Amount 10 to 15 mm. Fog patches developing overnight.
 Wind southwest 30 km/h gusting to 50 becoming light late this
 evening. Low 16.
Tuesday..Mainly cloudy with 30 percent chance of showers in the
 morning and early in the afternoon. Showers beginning in the
 afternoon. Risk of a thunderstorm late in the afternoon. Fog patches
 dissipating in the morning. Wind becoming southwest 20 km/h gusting
 to 40 then increasing to 40 gusting to 60 late in the morning.
 High 26. Humidex 31. UV index 8 or very high.
Tuesday night..Showers ending near midnight then cloudy with
 40 percent chance of showers. Risk of a thunderstorm in the evening.
 Wind southwest 40 km/h gusting to 60 becoming west 20 gusting to 40
 in the evening then becoming north 20 gusting to 40 near midnight.
 Low plus 4.

Continued in next message...

--- up 3 days, 7 hours, 57 minutes
 * Origin: Northern Realms (618:400/23)