Extended Forecasts for Southern Ontario and the National Capital Region


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

 
FPCN51 CWTO 161930
Extended forecasts from Saturday 18 August to Wednesday 22 August for
Southern Ontario and the National Capital Region issued by
Environment Canada at 3:30 p.m. EDT Thursday 16 August 2018.
The next scheduled forecast will be issued at 5:00 a.m. EDT Friday.

City of Toronto.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 16.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 19.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 23.
Tuesday night..Cloudy with 40 percent chance of showers. Low 17.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 24.
Normals for the period..Low 16. High 25.

Windsor - Essex - Chatham-Kent.
Saturday..A mix of sun and cloud. High 25.
Saturday night..Clear. Low 18.
Sunday..Sunny. High 28.
Sunday night..Clear. Low 18.
Monday..Increasing cloudiness. High 27.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 20.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 16.
Wednesday..A mix of sun and cloud. High 24.
Normals for the period..Low 16. High 26.

Sarnia - Lambton.
Saturday..A mix of sun and cloud. High 25.
Saturday night..Clear. Low 17.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 17.
Monday..Increasing cloudiness. High 26.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 20.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 17.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 15. High 26.

Elgin.
Saturday..A mix of sun and cloud. High 25.
Saturday night..Clear. Low 17.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 15.
Monday..Increasing cloudiness. High 27.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 19.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 16.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 15. High 25.

London - Middlesex.
Saturday..A mix of sun and cloud. High 25.
Saturday night..Clear. Low 15.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 15.
Monday..Increasing cloudiness. High 26.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 18.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 22.
Normals for the period..Low 14. High 25.

Simcoe - Delhi - Norfolk.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 16.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 15.
Monday..Increasing cloudiness. High 26.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 19.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 16.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 15. High 25.

Dunnville - Caledonia - Haldimand.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 16.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 16.
Monday..Increasing cloudiness. High 27.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 19.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 16.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 15. High 25.

Oxford - Brant.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 15.
Monday..Increasing cloudiness. High 27.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 18.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 23.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 22.
Normals for the period..Low 15. High 25.

Niagara.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 19.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 18.
Monday..Sunny. High 26.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 20.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 24.
Tuesday night..Cloudy with 40 percent chance of showers. Low 18.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 16. High 26.

City of Hamilton.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 18.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 17.
Monday..Sunny. High 26.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 20.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 23.
Tuesday night..Cloudy with 40 percent chance of showers. Low 17.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 14. High 25.

Halton - Peel.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 16.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 19.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 23.
Tuesday night..Cloudy with 40 percent chance of showers. Low 17.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 24.
Normals for the period..Low 14. High 25.

York - Durham.
Saturday..A mix of sun and cloud. High 25.
Saturday night..Clear. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 14.
Monday..Sunny. High 26.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 18.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 40 percent chance of showers. Low 16.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 15. High 25.

Huron - Perth.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 14.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 14.
Monday..Increasing cloudiness. High 26.
Monday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 18.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 21.
Normals for the period..Low 13. High 24.

Waterloo - Wellington.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 16.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 18.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 40 percent chance of showers. Low 16.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 23.
Normals for the period..Low 14. High 25.

Dufferin - Innisfil.
Saturday..A mix of sun and cloud. High 24.
Saturday night..Clear. Low 13.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 13.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 17.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 21.
Tuesday night..Cloudy with 40 percent chance of showers. Low 15.
Wednesday..A mix of sun and cloud with 30 percent chance of showers.
 High 22.
Normals for the period..Low 13. High 24.

Grey - Bruce.
Saturday..Sunny. High 24.
Saturday night..Clear. Low 13.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 13.
Monday..Sunny. High 26.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 17.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 21.
Tuesday night..Cloudy with 40 percent chance of showers. Low 15.
Wednesday..Cloudy with 30 percent chance of showers. High 21.
Normals for the period..Low 15. High 24.

Barrie - Orillia - Midland.
Saturday..Sunny. High 24.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 13.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 40 percent chance of showers.
 Low 17.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 21.
Tuesday night..Cloudy with 40 percent chance of showers. Low 15.
Wednesday..Cloudy with 30 percent chance of showers. High 22.
Normals for the period..Low 13. High 25.

Belleville - Quinte - Northumberland.
Saturday..A mix of sun and cloud. High 26.
Saturday night..Clearing. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 14.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 18.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..Cloudy with 30 percent chance of showers. High 24.
Normals for the period..Low 14. High 25.

Kingston - Prince Edward.
Saturday..A mix of sun and cloud. High 25.
Saturday night..Clearing. Low 15.
Sunday..Sunny. High 25.
Sunday night..Clear. Low 15.
Monday..Sunny. High 26.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 18.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..Cloudy with 30 percent chance of showers. High 24.
Normals for the period..Low 16. High 25.

Peterborough - Kawartha Lakes.
Saturday..A mix of sun and cloud. High 26.
Saturday night..Clearing. Low 12.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 11.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 15.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 16.
Wednesday..Cloudy with 30 percent chance of showers. High 24.
Normals for the period..Low 13. High 25.

Stirling - Tweed - South Frontenac.
Saturday..A mix of sun and cloud. High 26.
Saturday night..Clearing. Low 13.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 13.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 17.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 16.
Wednesday..Cloudy with 30 percent chance of showers. High 24.
Normals for the period..Low 13. High 25.

Bancroft - Bon Echo Park.
Saturday..A mix of sun and cloud. High 26.
Saturday night..Clearing. Low 12.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 12.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 16.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 16.
Wednesday..Cloudy with 30 percent chance of showers. High 24.
Normals for the period..Low 12. High 25.

Brockville - Leeds and Grenville.
Saturday..A mix of sun and cloud. High 25.
Saturday night..Clearing. Low 15.
Sunday..Sunny. High 25.
Sunday night..Clear. Low 15.
Monday..Sunny. High 26.
Monday night..Increasing cloudiness. Low 18.
Tuesday..Cloudy with 40 percent chance of showers. High 23.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 18.
Wednesday..Cloudy with 30 percent chance of showers. High 23.
Normals for the period..Low 15. High 24.

City of Ottawa.
Saturday..A mix of sun and cloud. High 27.
Saturday night..Clearing. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 15.
Monday..Sunny. High 28.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Cloudy with 40 percent chance of showers. High 24.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..Cloudy with 30 percent chance of showers. High 24.
Normals for the period..Low 15. High 25.

Gatineau.
Saturday..A mix of sun and cloud. High 27.
Saturday night..Clearing. Low 14.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 14.
Monday..Sunny. High 27.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Cloudy with 40 percent chance of showers. High 24.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..Cloudy with 30 percent chance of showers. High 23.
Normals for the period..Low 14. High 25.

Prescott and Russell.
Saturday..A mix of sun and cloud. High 27.
Saturday night..Clearing. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 15.
Monday..Sunny. High 27.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Cloudy with 40 percent chance of showers. High 24.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..Cloudy with 30 percent chance of showers. High 23.
Normals for the period..Low 15. High 25.

Cornwall - Morrisburg.
Saturday..A mix of sun and cloud. High 26.
Saturday night..Clearing. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 15.
Monday..Sunny. High 27.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Cloudy with 40 percent chance of showers. High 24.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 18.
Wednesday..Cloudy with 30 percent chance of showers. High 23.
Normals for the period..Low 13. High 25.

Smiths Falls - Lanark - Sharbot Lake.
Saturday..A mix of sun and cloud. High 26.
Saturday night..Clearing. Low 15.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 15.
Monday..Sunny. High 27.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Cloudy with 40 percent chance of showers. High 23.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 17.
Wednesday..Cloudy with 30 percent chance of showers. High 24.
Normals for the period..Low 15. High 25.

Parry Sound - Muskoka.
Saturday..Sunny. High 26.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 26.
Sunday night..Clear. Low 12.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 17.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 21.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 15.
Wednesday..Cloudy with 30 percent chance of showers. High 21.
Normals for the period..Low 12. High 24.

Haliburton.
Saturday..Sunny. High 26.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 12.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 16.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 22.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 14.
Wednesday..Cloudy with 30 percent chance of showers. High 23.
Normals for the period..Low 11. High 24.

Renfrew - Pembroke - Barry's Bay.
Saturday..A mix of sun and cloud. High 27.
Saturday night..Clearing. Low 11.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 11.
Monday..Sunny. High 28.
Monday night..Increasing cloudiness. Low 16.
Tuesday..Cloudy with 40 percent chance of showers. High 22.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 15.
Wednesday..Cloudy with 30 percent chance of showers. High 23.
Normals for the period..Low 11. High 24.

Algonquin.
Saturday..Sunny. High 26.
Saturday night..Clear. Low 12.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 12.
Monday..Sunny. High 27.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 16.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 21.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 15.
Wednesday..Cloudy with 30 percent chance of showers. High 23.
Normals for the period..Low 11. High 24.

Burk's Falls - Bayfield Inlet.
Saturday..Sunny. High 26.
Saturday night..Clear. Low 10.
Sunday..Sunny. High 27.
Sunday night..Clear. Low 12.
Monday..Sunny. High 26.
Monday night..Cloudy periods with 30 percent chance of showers.
 Low 17.
Tuesday..Cloudy with 60 percent chance of showers or thunderstorms.
 High 21.
Tuesday night..Cloudy with 60 percent chance of showers or
 thunderstorms. Low 13.
Wednesday..Cloudy with 30 percent chance of showers. High 22.
Normals for the period..Low 13. High 23.

End
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