FPCN11 CWTO 071500
Forecasts for Southern Ontario and the National Capital Region issued
by Environment Canada at 11:00 a.m. EDT Monday 7 September 2026 for
today and Tuesday.
The next scheduled forecast will be issued at 3:30 p.m. EDT.

City of Toronto.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Clear. Low 15.
Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning.
 High 25. Humidex 28. UV index 6 or high.

Windsor - Essex - Chatham-Kent.
Today..Sunny. Wind east 20 km/h. High 26. Humidex 30. UV index 7 or
 high.
Tonight..Clear. Fog patches developing overnight. Low 12.
Tuesday..Sunny. Fog patches dissipating in the morning. High 30.
 Humidex 36. UV index 7 or high.

Sarnia - Lambton.
Today..Sunny. High 26. Humidex 30. UV index 7 or high.
Tonight..Clear. Fog patches developing overnight. Low 12.
Tuesday..Sunny. Fog patches dissipating in the morning. High 28.
 Humidex 33. UV index 7 or high.

Elgin.
Today..Sunny. High 25. Humidex 29. UV index 7 or high.
Tonight..Clear. Fog patches developing overnight. Low 12.
Tuesday..Sunny. Fog patches dissipating in the morning. High 26.
 Humidex 31. UV index 7 or high.

London - Middlesex.
Today..Sunny. High 26. Humidex 29. UV index 7 or high.
Tonight..Clear. Fog patches developing overnight. Low 13.
Tuesday..Sunny. Fog patches dissipating in the morning. Wind becoming
 south 20 km/h late in the afternoon. High 27. Humidex 32. UV index 7
 or high.

Simcoe - Delhi - Norfolk.
Today..Sunny. High 26. Humidex 28. UV index 7 or high.
Tonight..Clear. Low 9.
Tuesday..Sunny. High 27. Humidex 30. UV index 7 or high.

Dunnville - Caledonia - Haldimand.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Clear. Low 10.
Tuesday..Sunny. High 26. Humidex 30. UV index 7 or high.

Oxford - Brant.
Today..Sunny. High 25. Humidex 28. UV index 7 or high.
Tonight..Clear. Low 10.
Tuesday..Mainly sunny. High 27. Humidex 31. UV index 7 or high.

Niagara Falls - Welland - Southern Niagara Region.
Today..Sunny. High 23. Humidex 26. UV index 6 or high.
Tonight..Clear. Low 17.
Tuesday..Sunny. High 25. Humidex 29. UV index 7 or high.

St. Catharines - Grimsby - Northern Niagara Region.
Today..Sunny. High 26. Humidex 29. UV index 6 or high.
Tonight..Clear. Low 12.
Tuesday..Sunny. Becoming a mix of sun and cloud in the afternoon.
 High 26. Humidex 31. UV index 6 or high.

City of Hamilton.
Today..Sunny. High 25. Humidex 29. UV index 6 or high.
Tonight..Clear. Low 12.
Tuesday..Sunny. High 25. Humidex 28. UV index 7 or high.

Halton - Peel.
Today..Sunny. High 25. Humidex 27. UV index 6 or high.
Tonight..Clear. Low 12.
Tuesday..Sunny. Increasing cloudiness late in the afternoon. High 25.
 Humidex 28. UV index 6 or high.

York - Durham.
Today..Sunny. High 25. Humidex 27. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 11.
Tuesday..Sunny. Increasing cloudiness in the afternoon. Fog patches
 dissipating in the morning. High 25. Humidex 29. UV index 6 or high.

Huron - Perth.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Clear. Low 12.
Tuesday..Mainly sunny. Wind becoming southeast 20 km/h late in the
 afternoon. High 27. Humidex 34. UV index 6 or high.

Waterloo - Wellington.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Clear. Low 11.
Tuesday..Mainly sunny. High 25. Humidex 28. UV index 7 or high.

Dufferin - Innisfil.
Today..Sunny. High 24. Humidex 29. UV index 6 or high.
Tonight..Clear. Low 11.
Tuesday..A mix of sun and cloud. High 24. Humidex 28. UV index 6 or
 high.

Saugeen Shores - Kincardine - Southern Bruce County
Bruce Peninsula - Sauble Beach - Tobermory.
Today..Sunny. High 23. Humidex 27. UV index 6 or high.
Tonight..Clear. Wind becoming southeast 20 km/h after midnight.
 Low 14.
Tuesday..Sunny. Becoming a mix of sun and cloud in the afternoon.
 High 25. Humidex 29. UV index 6 or high.

Hanover - Dundalk - Southern Grey County
Owen Sound - Blue Mountains - Northern Grey County.
Today..Sunny. High 24. Humidex 28. UV index 6 or high.
Tonight..Clear. Low 11.
Tuesday..Increasing cloudiness in the morning. Wind becoming south
 20 km/h late in the afternoon. High 24. Humidex 29. UV index 6 or
 high.

Barrie - Orillia - Midland.
Today..Sunny. High 24. Humidex 27. UV index 6 or high.
Tonight..Clear. Wind northwest 20 km/h becoming light late this
 evening. Low 10.
Tuesday..A mix of sun and cloud. High 24. Humidex 30. UV index 6 or
 high.

Belleville - Quinte - Northumberland.
Today..Sunny. High 24. Humidex 29. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 13.
Tuesday..Sunny. Increasing cloudiness in the afternoon. Fog patches
 dissipating in the morning. High 25. Humidex 30. UV index 6 or high.

Kingston - Prince Edward.
Today..Sunny. Wind becoming west 20 km/h this afternoon. High 25.
 Humidex 27. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 13.
Tuesday..Sunny. Increasing cloudiness in the afternoon. Fog patches
 dissipating in the morning. High 25. Humidex 30. UV index 6 or high.

Peterborough - Kawartha Lakes.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Clear. Fog patches developing overnight. Low 10.
Tuesday..Increasing cloudiness. Fog patches dissipating in the
 morning. High 24. Humidex 28. UV index 4 or moderate.

Stirling - Tweed - South Frontenac.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Partly cloudy. Fog patches developing overnight. Low 12.
Tuesday..A mix of sun and cloud. Fog patches dissipating in the
 morning. High 25. Humidex 30. UV index 6 or high.

Bancroft - Bon Echo Park.
Today..Sunny. High 24. Humidex 27. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 11.
Tuesday..A mix of sun and cloud. Becoming cloudy in the afternoon.
 Fog patches dissipating in the morning. High 24. Humidex 29. UV
 index 6 or high.

Brockville - Leeds and Grenville.
Today..Sunny. High 26. Humidex 28. UV index 6 or high.
Tonight..Clear early this evening then partly cloudy with 40 percent
 chance of showers before morning. Low 14.
Tuesday..A mix of sun and cloud. 40 percent chance of showers in the
 morning. High 24. Humidex 29. UV index 6 or high.

City of Ottawa.
Today..Sunny. Wind northwest 20 km/h. High 26. Humidex 29. UV index 6
 or high.
Tonight..Increasing cloudiness. 40 percent chance of showers before
 morning. Wind west 20 km/h becoming light late this evening. Low 15.
Tuesday..Mainly cloudy. 40 percent chance of showers in the morning.
 High 23. Humidex 27. UV index 5 or moderate.

Gatineau.
Today..Sunny. Wind becoming west 20 km/h this afternoon. High 26.
 Humidex 29. UV index 6 or high.
Tonight..Increasing cloudiness. 40 percent chance of showers before
 morning. Wind west 20 km/h becoming light this evening. Low 16.
Tuesday..Cloudy. 40 percent chance of showers in the morning.
 High 24. Humidex 27. UV index 4 or moderate.

Prescott and Russell.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Increasing cloudiness. 40 percent chance of showers before
 morning. Low 16.
Tuesday..Mainly cloudy. 40 percent chance of showers in the morning.
 High 23. Humidex 28. UV index 5 or moderate.

Cornwall - Morrisburg.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Clear. Increasing cloudiness near midnight then 40 percent
 chance of showers before morning. Low 14.
Tuesday..Mainly cloudy. 40 percent chance of showers in the morning.
 High 24. Humidex 29. UV index 6 or high.

Smiths Falls - Lanark - Sharbot Lake.
Today..Sunny. High 25. Humidex 27. UV index 6 or high.
Tonight..Increasing cloudiness early this evening. 40 percent chance
 of showers overnight. Fog patches developing overnight. Low 14.
Tuesday..A mix of sun and cloud. 40 percent chance of showers in the
 morning. Fog patches dissipating in the morning. High 24. Humidex
 29. UV index 6 or high.

Port Carling - Port Severn
Bracebridge - Gravenhurst.
Today..Sunny. High 25. Humidex 28. UV index 6 or high.
Tonight..Clear. Becoming partly cloudy after midnight. Low 12.
Tuesday..Mainly cloudy. High 25. Humidex 29. UV index 6 or high.

Town of Parry Sound - Rosseau - Killbear Park
Huntsville - Baysville.
Today..Sunny. High 24. Humidex 27. UV index 6 or high.
Tonight..Clear. Increasing cloudiness after midnight. Low 13.
Tuesday..A mix of sun and cloud. Becoming cloudy late in the morning.
 High 24. Humidex 28. UV index 4 or moderate.

Haliburton.
Today..Sunny. High 24. Humidex 27. UV index 6 or high.
Tonight..A few clouds. Fog patches developing overnight. Low 13.
Tuesday..Mainly cloudy. Fog patches dissipating in the morning.
 High 22. Humidex 26. UV index 6 or high.

Barry's Bay - Killaloe
Renfrew - Arnprior - Calabogie.
Today..Sunny. High 24. Humidex 26. UV index 6 or high.
Tonight..Partly cloudy. 40 percent chance of showers overnight.
 Low 14.
Tuesday..Mainly cloudy. 40 percent chance of showers in the morning.
 High 23. Humidex 28. UV index 6 or high.

Petawawa - Pembroke - Cobden.
Today..Sunny. High 24. Humidex 28. UV index 6 or high.
Tonight..Increasing cloudiness. 40 percent chance of showers
 overnight. Low 17.
Tuesday..Cloudy. 40 percent chance of showers in the morning.
 High 23. Humidex 28. UV index 4 or moderate.

Algonquin.
Today..Sunny. High 24. Humidex 27. UV index 6 or high.
Tonight..Partly cloudy. 40 percent chance of showers overnight.
 Low 11.
Tuesday..A mix of sun and cloud. Becoming cloudy in the afternoon.
 High 24. Humidex 28. UV index 6 or high.

Burk's Falls - Bayfield Inlet.
Today..Sunny. Becoming a mix of sun and cloud this afternoon.
 High 25. Humidex 28. UV index 6 or high.
Tonight..Partly cloudy. Low 14.
Tuesday..A mix of sun and cloud. Becoming cloudy late in the morning.
 High 23. Humidex 27. UV index 4 or moderate.

End
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 * Origin: Northern Realms (618:400/23)