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December 10th, 2025 :: 1:14 am EST   

Local Weather Report for
Grand Valley
Ontario, Canada

 Grand Valley Weather Forecast Summary  
 
Today
Dec 10th
Thursday
Dec 11th
Friday
Dec 12th
Saturday
Dec 13th
Sunday
Dec 14th
Mix of rain and snow Mostly Sunny Cloudy Cloudy Cloudy
0°C
-7°C
-11°C
-2°C
-10°C
-5°C
-11°C
-9°C
-15°C
 
 Grand Valley Detailed Weather Forecast  
 
Wednesday, December 10th, 2025
Overnight Temperature: -1°C
Cloudy with flurries likely.
Morning Temperature: 0°C
Cloudy with flurries or showers likely.
Afternoon Temperature: -4°C
Cloudy with a chance of flurries. Windy.
Evening Temperature: -10°C
Clear with cloudy periods with a chance of flurries. Windy.
Thursday, December 11th, 2025
Overnight Temperature: -11°C
Clear with cloudy periods. Windy.
Morning Temperature: -8°C
Sunny with cloudy periods. Windy.
Afternoon Temperature: -8°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: -9°C
Clear. Windy at times.
Friday, December 12th, 2025
Overnight Temperature: -9°C
Clear with cloudy periods.
Morning Temperature: -4°C
A mix of cloud and sun. Windy at times.
Afternoon Temperature: -5°C
Cloudy. Windy at times.
Evening Temperature: -6°C
Cloudy. Windy at times.
Saturday, December 13th, 2025
Overnight Temperature: -7°C
Clear with cloudy periods. Windy at times.
Morning Temperature: -5°C
Cloudy. Windy at times.
Afternoon Temperature: -7°C
Cloudy. Windy at times.
Evening Temperature: -10°C
Cloudy.
Sunday, December 14th, 2025
Overnight Temperature: -12°C
Cloudy with a chance of flurries.
Morning Temperature: -11°C
Cloudy with a chance of flurries.
Afternoon Temperature: -13°C
Sunny with cloudy periods with a chance of flurries. Windy.
Evening Temperature: -15°C
A mix of cloudy and clear skies with a chance of flurries. Windy at times.
Monday, December 15th, 2025
Overnight Temperature: -15°C
Cloudy with a slight chance of flurries.
Morning Temperature: -8°C
Cloudy. Windy at times.
Afternoon Temperature: -9°C
Cloudy.
Evening Temperature: -11°C
A mix of cloudy and clear skies.
Tuesday, December 16th, 2025
Overnight Temperature: -11°C
Clear with cloudy periods. Windy at times.
Morning Temperature: -7°C
Cloudy. Windy at times.
Afternoon Temperature: -6°C
Cloudy. Windy at times.
Evening Temperature: -6°C
A mix of clear and cloudy skies. Windy.
Wednesday, December 17th, 2025
Overnight Temperature: -3°C
A mix of cloudy and clear skies. Windy.
Morning Temperature: 0°C
Cloudy. Windy.
Afternoon Temperature: 1°C
Cloudy with flurries or showers likely. Risk of freezing rain. Windy.
Evening Temperature: 1°C
Cloudy with flurries or showers likely. Windy.





 

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12:00 AM  -1°C
 
 
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12:00 AM  -1°C
 

 
This WeatherCity Weather Forecast for Grand Valley, 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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