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Extended Forecasts for Southern Ontario and the National Capital Region


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

 
FPCN51 CWTO 291930
Extended forecasts from Thursday 1 May to Monday 5 May for Southern
Ontario and the National Capital Region issued by Environment Canada
at 3:30 p.m. EDT Tuesday 29 April 2025.
The next scheduled forecast will be issued at 5:00 a.m. EDT
Wednesday.

City of Toronto.
Thursday..Cloudy with 70 percent chance of showers. High 13.
Thursday night..Showers. Low 11.
Friday..Cloudy with 70 percent chance of showers. High 15.
Friday night..Cloudy periods with 30 percent chance of showers. Low
 plus 5.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 10.
Saturday night..Cloudy periods. Low plus 3.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 5.
Monday..A mix of sun and cloud. High 15.
Normals for the period..Low 6. High 16.

Windsor - Essex - Chatham-Kent.
Thursday..Cloudy with 70 percent chance of showers. High 19.
Thursday night..Showers. Low 13.
Friday..Cloudy with 70 percent chance of showers. High 16.
Friday night..Cloudy with 30 percent chance of showers. Low 6.
Saturday..Cloudy with 30 percent chance of showers. High 11.
Saturday night..Clear. Low plus 5.
Sunday..Sunny. High 16.
Sunday night..Clear. Low 7.
Monday..Sunny. High 19.
Normals for the period..Low 6. High 17.

Sarnia - Lambton.
Thursday..Cloudy with 70 percent chance of showers. High 16.
Thursday night..Showers. Low 11.
Friday..Cloudy with 70 percent chance of showers. High 12.
Friday night..Cloudy with 30 percent chance of showers. Low plus 5.
Saturday..Cloudy with 30 percent chance of showers. High 9.
Saturday night..Clear. Low plus 4.
Sunday..Sunny. High 13.
Sunday night..Clear. Low 6.
Monday..Sunny. High 16.
Normals for the period..Low plus 5. High 17.

Elgin.
Thursday..Cloudy with 70 percent chance of showers. High 15.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 12.
Friday night..Cloudy with 30 percent chance of showers. Low 6.
Saturday..Cloudy with 30 percent chance of showers. High 9.
Saturday night..Cloudy periods. Low plus 3.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 5.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 5. High 16.

London - Middlesex.
Thursday..Cloudy with 70 percent chance of showers. High 18.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 14.
Friday night..Cloudy with 30 percent chance of showers. Low plus 5.
Saturday..Cloudy with 30 percent chance of showers. High 8.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 5. High 16.

Simcoe - Delhi - Norfolk.
Thursday..Cloudy with 70 percent chance of showers. High 17.
Thursday night..Showers. Low 13.
Friday..Cloudy with 70 percent chance of showers. High 13.
Friday night..Cloudy with 30 percent chance of showers. Low plus 5.
Saturday..Cloudy with 30 percent chance of showers. High 10.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 4. High 16.

Dunnville - Caledonia - Haldimand.
Thursday..Cloudy with 70 percent chance of showers. High 16.
Thursday night..Showers. Low 13.
Friday..Cloudy with 70 percent chance of showers. High 14.
Friday night..Cloudy periods with 30 percent chance of showers.
 Low 6.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 10.
Saturday night..Cloudy periods. Low plus 3.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 5.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 5. High 16.

Oxford - Brant.
Thursday..Cloudy with 70 percent chance of showers. High 17.
Thursday night..Showers. Low 13.
Friday..Cloudy with 70 percent chance of showers. High 15.
Friday night..Cloudy with 30 percent chance of showers. Low plus 5.
Saturday..Cloudy with 30 percent chance of showers. High 10.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 5. High 16.

Niagara.
Thursday..Cloudy with 70 percent chance of showers. High 16.
Thursday night..Showers. Low 13.
Friday..Cloudy with 70 percent chance of showers. High 13.
Friday night..Cloudy with 30 percent chance of showers. Low 6.
Saturday..Cloudy with 30 percent chance of showers. High 9.
Saturday night..Cloudy periods. Low plus 4.
Sunday..A mix of sun and cloud. High 11.
Sunday night..Cloudy periods. Low plus 5.
Monday..A mix of sun and cloud. High 14.
Normals for the period..Low 6. High 16.

City of Hamilton.
Thursday..Cloudy with 70 percent chance of showers. High 14.
Thursday night..Showers. Low 13.
Friday..Cloudy with 70 percent chance of showers. High 13.
Friday night..Cloudy periods with 30 percent chance of showers.
 Low 6.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 9.
Saturday night..Cloudy periods. Low plus 3.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 5.
Monday..A mix of sun and cloud. High 15.
Normals for the period..Low plus 5. High 15.

Halton - Peel.
Thursday..Cloudy with 70 percent chance of showers. High 13.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 15.
Friday night..Cloudy periods with 30 percent chance of showers. Low
 plus 5.
Saturday..A mix of sun and cloud with 30 percent chance of showers.
 High 9.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 5.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 4. High 16.

York - Durham.
Thursday..Cloudy with 70 percent chance of showers. High 13.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 15.
Friday night..Cloudy with 30 percent chance of showers. Low plus 4.
Saturday..Cloudy with 30 percent chance of showers. High 10.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 5. High 15.

Huron - Perth.
Thursday..Cloudy with 70 percent chance of showers. High 16.
Thursday night..Showers. Low 9.
Friday..Cloudy with 70 percent chance of showers. High 11.
Friday night..Cloudy with 30 percent chance of showers. Low plus 3.
Saturday..Cloudy with 30 percent chance of showers. High 9.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 4. High 15.

Waterloo - Wellington.
Thursday..Cloudy with 70 percent chance of showers. High 14.
Thursday night..Showers. Low 13.
Friday..Cloudy with 70 percent chance of showers. High 14.
Friday night..Cloudy with 30 percent chance of showers. Low plus 4.
Saturday..Cloudy with 30 percent chance of showers. High 8.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 4. High 15.

Dufferin - Innisfil.
Thursday..Cloudy with 70 percent chance of showers. High 13.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 14.
Friday night..Cloudy with 30 percent chance of showers. Low plus 3.
Saturday..Cloudy with 30 percent chance of showers. High 9.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 12.
Sunday night..Cloudy periods. Low plus 3.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 3. High 15.

Grey - Bruce.
Thursday..Cloudy with 70 percent chance of showers. High 13.
Thursday night..Showers. Low 10.
Friday..Cloudy with 70 percent chance of showers. High 10.
Friday night..Cloudy with 30 percent chance of showers. Low plus 2.
Saturday..Cloudy with 30 percent chance of showers. High 7.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 12.
Sunday night..Cloudy periods. Low plus 3.
Monday..A mix of sun and cloud. High 15.
Normals for the period..Low plus 4. High 14.

Barrie - Orillia - Midland.
Thursday..Cloudy with 70 percent chance of showers. High 13.
Thursday night..Showers. Low 10.
Friday..Cloudy with 70 percent chance of showers. High 11.
Friday night..Cloudy with 30 percent chance of showers. Low plus 3.
Saturday..Cloudy with 30 percent chance of showers. High 8.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 12.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 3. High 15.

Belleville - Quinte - Northumberland.
Thursday..Cloudy with 40 percent chance of showers. High 14.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 16.
Friday night..Cloudy with 30 percent chance of showers. Low 6.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 3.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 15.
Normals for the period..Low plus 4. High 15.

Kingston - Prince Edward.
Thursday..Cloudy with 30 percent chance of showers. High 14.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 16.
Friday night..Cloudy with 30 percent chance of showers. Low 6.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 3.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 15.
Normals for the period..Low plus 4. High 15.

Peterborough - Kawartha Lakes.
Thursday..Cloudy with 40 percent chance of showers. High 13.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 15.
Friday night..Cloudy with 30 percent chance of showers. Low plus 5.
Saturday..Cloudy with 30 percent chance of showers. High 11.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 3.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 4. High 16.

Stirling - Tweed - South Frontenac.
Thursday..Cloudy with 30 percent chance of showers. High 14.
Thursday night..Showers. Low 12.
Friday..Cloudy with 70 percent chance of showers. High 16.
Friday night..Cloudy with 30 percent chance of showers. Low plus 5.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 3.
Sunday..A mix of sun and cloud. High 15.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 4. High 16.

Bancroft - Bon Echo Park.
Thursday..Cloudy with 30 percent chance of showers. High 14.
Thursday night..Showers. Low 11.
Friday..Cloudy with 70 percent chance of showers. High 16.
Friday night..Cloudy with 30 percent chance of showers. Low plus 3.
Saturday..Cloudy with 30 percent chance of showers. High 11.
Saturday night..Cloudy periods. Low zero.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 2.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 3. High 16.

Brockville - Leeds and Grenville.
Thursday..Cloudy. High 16.
Thursday night..Showers. Low 12.
Friday..Showers. High 18.
Friday night..Cloudy with 30 percent chance of showers. Low 8.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 4.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 5. High 15.

City of Ottawa.
Thursday..Cloudy. High 15.
Thursday night..Showers. Low 10.
Friday..Showers. High 18.
Friday night..Cloudy with 30 percent chance of showers. Low 7.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 4.
Sunday..A mix of sun and cloud. High 15.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 5. High 16.

Gatineau.
Thursday..Cloudy. High 15.
Thursday night..Showers. Low 9.
Friday..Showers. High 17.
Friday night..Cloudy with 30 percent chance of showers. Low 6.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 4.
Sunday..A mix of sun and cloud. High 15.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 4. High 16.

Prescott and Russell.
Thursday..Cloudy. High 15.
Thursday night..Showers. Low 10.
Friday..Showers. High 18.
Friday night..Cloudy with 30 percent chance of showers. Low 8.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 4.
Sunday..A mix of sun and cloud. High 15.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 5. High 16.

Cornwall - Morrisburg.
Thursday..Cloudy. High 17.
Thursday night..Showers. Low 12.
Friday..Showers. High 19.
Friday night..Cloudy with 30 percent chance of showers. Low 9.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 5.
Sunday..A mix of sun and cloud. High 14.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 4. High 16.

Smiths Falls - Lanark - Sharbot Lake.
Thursday..Cloudy. High 15.
Thursday night..Showers. Low 11.
Friday..Showers. High 18.
Friday night..Cloudy with 30 percent chance of showers. Low 7.
Saturday..Cloudy with 30 percent chance of showers. High 12.
Saturday night..Cloudy periods. Low plus 4.
Sunday..A mix of sun and cloud. High 15.
Sunday night..Cloudy periods. Low plus 4.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 5. High 16.

Parry Sound - Muskoka.
Thursday..Cloudy with 60 percent chance of showers. High 13.
Thursday night..Showers. Low 9.
Friday..Cloudy with 70 percent chance of showers. High 11.
Friday night..Cloudy with 30 percent chance of showers. Low plus 2.
Saturday..Cloudy. High 9.
Saturday night..Cloudy periods. Low plus 2.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 3.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 2. High 15.

Haliburton.
Thursday..Cloudy with 30 percent chance of showers. High 12.
Thursday night..Showers. Low 9.
Friday..Cloudy with 70 percent chance of showers. High 12.
Friday night..Cloudy with 40 percent chance of showers. Low plus 2.
Saturday..Cloudy with 30 percent chance of showers. High 8.
Saturday night..Cloudy periods. Low plus 1.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 2.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 2. High 16.

Renfrew - Pembroke - Barry's Bay.
Thursday..Cloudy with 30 percent chance of showers. High 13.
Thursday night..Showers. Low 8.
Friday..Cloudy with 70 percent chance of showers. High 13.
Friday night..Cloudy with 40 percent chance of showers. Low plus 3.
Saturday..Cloudy with 30 percent chance of showers. High 11.
Saturday night..Cloudy periods. Low plus 1.
Sunday..A mix of sun and cloud. High 15.
Sunday night..Cloudy periods. Low plus 2.
Monday..A mix of sun and cloud. High 18.
Normals for the period..Low plus 2. High 16.

Algonquin.
Thursday..Cloudy with 30 percent chance of showers. High 12.
Thursday night..Showers. Low 8.
Friday..Cloudy with 70 percent chance of showers. High 12.
Friday night..Cloudy with 40 percent chance of showers. Low plus 1.
Saturday..Cloudy with 30 percent chance of showers. High 8.
Saturday night..Cloudy periods. Low plus 1.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 2.
Monday..A mix of sun and cloud. High 16.
Normals for the period..Low plus 2. High 16.

Burk's Falls - Bayfield Inlet.
Thursday..Cloudy with 60 percent chance of showers. High 12.
Thursday night..Showers. Low 7.
Friday..Cloudy with 70 percent chance of showers. High 9.
Friday night..Cloudy with 30 percent chance of showers. Low plus 1.
Saturday..Cloudy. High 8.
Saturday night..Cloudy periods. Low plus 1.
Sunday..A mix of sun and cloud. High 13.
Sunday night..Cloudy periods. Low plus 2.
Monday..A mix of sun and cloud. High 17.
Normals for the period..Low plus 3. High 14.

End
$$$$^^

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