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October 9th, 2025 :: 8:20 am EDT   

Local Weather Report for
Cornwall
Ontario, Canada

 Cornwall Weather Forecast Summary  
 
Today
Oct 9th
Friday
Oct 10th
Saturday
Oct 11th
Sunday
Oct 12th
Monday
Oct 13th
Sunny Cloudy Mostly Sunny Cloudy Showers
52°F
59°F
34°F
66°F
44°F
66°F
45°F
50°F
46°F
 
 Cornwall Detailed Weather Forecast  
 
Thursday, October 9th, 2025
Morning Temperature: 49°F
Sunny.
Afternoon Temperature: 46°F
Sunny.
Evening Temperature: 37°F
Clear.
Friday, October 10th, 2025
Overnight Temperature: 35°F
A mix of cloudy and clear skies.
Morning Temperature: 55°F
A mix of cloud and sun.
Afternoon Temperature: 52°F
Cloudy.
Evening Temperature: 45°F
Cloudy.
Saturday, October 11th, 2025
Overnight Temperature: 44°F
Mostly clear.
Morning Temperature: 63°F
Sunny.
Afternoon Temperature: 58°F
Sunny.
Evening Temperature: 48°F
Clear.
Sunday, October 12th, 2025
Overnight Temperature: 46°F
Cloudy.
Morning Temperature: 62°F
Cloudy. Windy at times.
Afternoon Temperature: 58°F
Cloudy. Windy at times.
Evening Temperature: 53°F
Cloudy.
Monday, October 13th, 2025
Overnight Temperature: 50°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 48°F
Cloudy with a few showers. Windy at times.
Afternoon Temperature: 47°F
Cloudy with showers likely.
Evening Temperature: 46°F
Clear with cloudy periods.
Tuesday, October 14th, 2025
Overnight Temperature: 46°F
Cloudy.
Morning Temperature: 57°F
Sunny with cloudy periods.
Afternoon Temperature: 56°F
Sunny.
Evening Temperature: 48°F
A mix of cloudy and clear skies.
Wednesday, October 15th, 2025
Overnight Temperature: 49°F
Cloudy.
Morning Temperature: 61°F
Cloudy. Windy at times.
Afternoon Temperature: 55°F
Sunny with cloudy periods.
Evening Temperature: 44°F
Clear with cloudy periods.
Thursday, October 16th, 2025
Overnight Temperature: 45°F
Cloudy.
Morning Temperature: 52°F
Cloudy. Windy at times.
Afternoon Temperature: 46°F
Cloudy.
Evening Temperature: 44°F
Cloudy.
Friday, October 17th, 2025
Overnight Temperature: 44°F
Cloudy.
Morning Temperature: 55°F
A mix of cloud and sun.
Afternoon Temperature: 53°F
Cloudy.
Evening Temperature: 47°F
Cloudy.





 

  [ Local Weather Report ]
Massena, NY 
6:53 AM  37°F
 
 
Lancaster, ON 
 
Apple Hill, ON 
7:00 AM  30°F
 
 
Avondale, ON 
 
Monkland, ON 
7:00 AM  30°F
 
 
South Lancaster, ON 
7:00 AM  37°F
 
 
Glen Gordon, ON 
 
Avonmore, ON 
7:00 AM  30°F
 
 
Sainte Agnes, QC 
7:00 AM  37°F
 
 
Beaver Crossing, QC 
7:00 AM  37°F
 

 
This WeatherCity Weather Forecast for Cornwall, Ontario, Canada is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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