Extended Forecasts for Southern Ontario and the National Capital Region


* NOTE: Corrected and/or amended bulletins are listed first *

 
FPCN51 CWTO 190900
Extended forecasts from Monday night 20 August to Saturday 25 August
for Southern Ontario and the National Capital Region issued by
Environment Canada at 5:00 a.m. EDT Sunday 19 August 2018.
The next scheduled forecast will be issued at 11:00 a.m. EDT.

City of Toronto.
Monday night..Increasing cloudiness. Low 20.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..A mix of sun and cloud. High 23.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 25.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 26.
Friday night..Clear. Low 16.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 16. High 25.

Windsor - Essex - Chatham-Kent.
Monday night..Showers or thunderstorms. Low 21.
Tuesday..Cloudy with 70 percent chance of showers or thunderstorms.
 High 25.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud. High 23.
Wednesday night..Clear. Low 12.
Thursday..A mix of sun and cloud. High 26.
Thursday night..Clear. Low 14.
Friday..A mix of sun and cloud. High 27.
Friday night..Clear. Low 16.
Saturday..A mix of sun and cloud. High 27.
Normals for the period..Low 15. High 26.

Sarnia - Lambton.
Monday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 20.
Tuesday..Showers or thunderstorms. High 24.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 13.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 14.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 16.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 14. High 26.

Elgin.
Monday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 20.
Tuesday..Showers or thunderstorms. High 24.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 15.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 15. High 25.

London - Middlesex.
Monday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 20.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud. High 21.
Wednesday night..Clear. Low 12.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 12.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 14.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 14. High 25.

Simcoe - Delhi - Norfolk.
Monday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 20.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 12.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 14.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 15.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 14. High 25.

Dunnville - Caledonia - Haldimand.
Monday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 21.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 12.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 14.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 17.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 14. High 25.

Oxford - Brant.
Monday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 20.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 12.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 14.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 14.
Saturday..A mix of sun and cloud. High 24.
Normals for the period..Low 14. High 25.

Niagara.
Monday night..Increasing cloudiness. Low 20.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 14.
Thursday..A mix of sun and cloud. High 23.
Thursday night..Clear. Low 16.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 18.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 15. High 25.

City of Hamilton.
Monday night..Increasing cloudiness. Low 20.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 16.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 13.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 15.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 18.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 14. High 25.

Halton - Peel.
Monday night..Increasing cloudiness. Low 19.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 15.
Wednesday..A mix of sun and cloud. High 23.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 25.
Thursday night..Clear. Low 12.
Friday..A mix of sun and cloud. High 26.
Friday night..Clear. Low 14.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 14. High 25.

York - Durham.
Monday night..Increasing cloudiness. Low 18.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 16.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 12.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 13.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 14. High 24.

Huron - Perth.
Monday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 19.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 14.
Wednesday..A mix of sun and cloud. High 21.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 12.
Friday..A mix of sun and cloud. High 24.
Friday night..Clear. Low 15.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 13. High 24.

Waterloo - Wellington.
Monday night..Increasing cloudiness. Low 18.
Tuesday..Showers or thunderstorms. High 23.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 13.
Wednesday..A mix of sun and cloud. High 21.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 13.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 13. High 24.

Dufferin - Innisfil.
Monday night..Increasing cloudiness. Low 18.
Tuesday..Showers or thunderstorms. High 22.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 14.
Wednesday..A mix of sun and cloud. High 21.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 13.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 12. High 24.

Grey - Bruce.
Monday night..Increasing cloudiness. Low 19.
Tuesday..Showers or thunderstorms. High 22.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Windy. Low 14.
Wednesday..A mix of sun and cloud. Windy. High 20.
Wednesday night..Clear. Low 10.
Thursday..Sunny. High 24.
Thursday night..Clear. Low 12.
Friday..Sunny. High 24.
Friday night..Clear. Low 15.
Saturday..A mix of sun and cloud. High 23.
Normals for the period..Low 14. High 23.

Barrie - Orillia - Midland.
Monday night..Increasing cloudiness. Low 17.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 14.
Wednesday..A mix of sun and cloud. High 21.
Wednesday night..Clear. Low 10.
Thursday..Sunny. High 24.
Thursday night..Clear. Low 11.
Friday..Sunny. High 25.
Friday night..Clear. Low 12.
Saturday..A mix of sun and cloud. High 24.
Normals for the period..Low 12. High 24.

Belleville - Quinte - Northumberland.
Monday night..Increasing cloudiness. Low 18.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 15.
Wednesday..A mix of sun and cloud. High 23.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 12.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 14.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 14. High 24.

Kingston - Prince Edward.
Monday night..Increasing cloudiness. Low 17.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 16.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 23.
Thursday night..Clear. Low 14.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 15.
Saturday..A mix of sun and cloud. High 25.
Normals for the period..Low 15. High 24.

Peterborough - Kawartha Lakes.
Monday night..Increasing cloudiness. Low 15.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..A mix of sun and cloud. High 22.
Wednesday night..Clear. Low 9.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 9.
Friday..A mix of sun and cloud. High 26.
Friday night..Clear. Low 10.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 13. High 24.

Stirling - Tweed - South Frontenac.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 16.
Wednesday..A mix of sun and cloud. High 21.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 11.
Friday..A mix of sun and cloud. High 26.
Friday night..Clear. Low 13.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 13. High 24.

Bancroft - Bon Echo Park.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 15.
Wednesday..A mix of sun and cloud. High 21.
Wednesday night..Clear. Low 9.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 11.
Friday..A mix of sun and cloud. High 26.
Friday night..Clear. Low 12.
Saturday..A mix of sun and cloud. High 26.
Normals for the period..Low 12. High 24.

Brockville - Leeds and Grenville.
Monday night..Clear. Low 16.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 24.
Tuesday night..Showers or thunderstorms. Low 18.
Wednesday..Cloudy with 40 percent chance of showers. High 21.
Wednesday night..Clear. Low 11.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 27.
Friday night..Clear. Low 15.
Saturday..Sunny. High 27.
Normals for the period..Low 14. High 24.

City of Ottawa.
Monday night..Clear. Low 16.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 24.
Tuesday night..Showers or thunderstorms. Low 18.
Wednesday..Cloudy with 40 percent chance of showers. High 20.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 25.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 27.
Friday night..Clear. Low 15.
Saturday..Sunny. High 27.
Normals for the period..Low 14. High 24.

Gatineau.
Monday night..Clear. Low 15.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 24.
Tuesday night..Showers or thunderstorms. Low 18.
Wednesday..Cloudy with 40 percent chance of showers. High 20.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 25.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 27.
Friday night..Clear. Low 14.
Saturday..Sunny. High 27.
Normals for the period..Low 13. High 24.

Prescott and Russell.
Monday night..Clear. Low 16.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 24.
Tuesday night..Showers or thunderstorms. Low 18.
Wednesday..Cloudy with 40 percent chance of showers. High 20.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 25.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 27.
Friday night..Clear. Low 15.
Saturday..Sunny. High 27.
Normals for the period..Low 14. High 24.

Cornwall - Morrisburg.
Monday night..Clear. Low 15.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 25.
Tuesday night..Showers or thunderstorms. Low 18.
Wednesday..Cloudy with 40 percent chance of showers. High 22.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 13.
Friday..A mix of sun and cloud. High 27.
Friday night..Clear. Low 14.
Saturday..Sunny. High 27.
Normals for the period..Low 13. High 25.

Smiths Falls - Lanark - Sharbot Lake.
Monday night..Clear. Low 16.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 23.
Tuesday night..Showers or thunderstorms. Low 16.
Wednesday..Cloudy with 40 percent chance of showers. High 22.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 12.
Friday..A mix of sun and cloud. High 26.
Friday night..Clear. Low 13.
Saturday..Sunny. High 26.
Normals for the period..Low 14. High 24.

Parry Sound - Muskoka.
Monday night..Increasing cloudiness. Low 17.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 13.
Wednesday..Cloudy with 30 percent chance of showers. High 20.
Wednesday night..Clear. Low 10.
Thursday..A mix of sun and cloud. High 23.
Thursday night..Clear. Low 11.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 13.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 24.
Normals for the period..Low 11. High 23.

Haliburton.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 15.
Wednesday..Cloudy with 30 percent chance of showers. High 21.
Wednesday night..Clear. Low 9.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 10.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 12.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 25.
Normals for the period..Low 11. High 24.

Renfrew - Pembroke - Barry's Bay.
Monday night..Clear. Low 16.
Tuesday..A mix of sun and cloud with 40 percent chance of showers.
 High 22.
Tuesday night..Showers or thunderstorms. Low 15.
Wednesday..Cloudy with 40 percent chance of showers. High 20.
Wednesday night..Clear. Low 7.
Thursday..A mix of sun and cloud. High 25.
Thursday night..Clear. Low 11.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 12.
Saturday..Sunny. High 26.
Normals for the period..Low 11. High 24.

Algonquin.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Showers or thunderstorms. High 21.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 14.
Wednesday..Cloudy with 30 percent chance of showers. High 20.
Wednesday night..Clear. Low 9.
Thursday..A mix of sun and cloud. High 24.
Thursday night..Clear. Low 11.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 12.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 25.
Normals for the period..Low 10. High 24.

Burk's Falls - Bayfield Inlet.
Monday night..Increasing cloudiness. Low 17.
Tuesday..Showers or thunderstorms. High 20.
Tuesday night..Cloudy with 70 percent chance of showers or
 thunderstorms. Low 12.
Wednesday..Cloudy with 30 percent chance of showers. High 21.
Wednesday night..Clear. Low 9.
Thursday..A mix of sun and cloud. High 23.
Thursday night..Clear. Low 12.
Friday..A mix of sun and cloud. High 25.
Friday night..Clear. Low 13.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 13. High 23.

End
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