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December 13th, 2025 :: 1:05 pm EST   

Local Weather Report for
Grimsby
Ontario, Canada

 Grimsby Weather Forecast Summary  
 
Today
Dec 13th
Sunday
Dec 14th
Monday
Dec 15th
Tuesday
Dec 16th
Wednesday
Dec 17th
Flurries Cloudy Cloudy Cloudy Cloudy
-1°C
-8°C
-13°C
-4°C
-10°C
2°C
-10°C
3°C
-1°C
 
 Grimsby Detailed Weather Forecast  
 
Saturday, December 13th, 2025
Afternoon Temperature: -8°C
Cloudy. Windy at times.
Evening Temperature: -11°C
Cloudy. Windy at times.
Sunday, December 14th, 2025
Overnight Temperature: -13°C
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: -10°C
Cloudy. Windy.
Afternoon Temperature: -10°C
A mix of cloud and sun. Windy at times.
Evening Temperature: -11°C
Clear with cloudy periods. Windy at times.
Monday, December 15th, 2025
Overnight Temperature: -10°C
Cloudy.
Morning Temperature: -5°C
Cloudy with a chance of flurries. Windy at times.
Afternoon Temperature: -6°C
Cloudy with a chance of flurries. Windy.
Evening Temperature: -9°C
Clear with cloudy periods. Windy at times.
Tuesday, December 16th, 2025
Overnight Temperature: -10°C
Clear. Windy at times.
Morning Temperature: -4°C
Cloudy. Windy.
Afternoon Temperature: 0°C
Cloudy. Windy.
Evening Temperature: 2°C
Cloudy. Wind 30 to 50 km/h.
Wednesday, December 17th, 2025
Overnight Temperature: 3°C
Cloudy. Wind 30 to 50 km/h.
Morning Temperature: 3°C
Cloudy. Wind 30 to 50 km/h.
Afternoon Temperature: 2°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 0°C
Cloudy. Windy at times.
Thursday, December 18th, 2025
Overnight Temperature: 1°C
Cloudy.
Morning Temperature: 5°C
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy.
Afternoon Temperature: 7°C
Cloudy with showers likely. Wind 30 to 50 km/h.
Evening Temperature: 5°C
Clear with cloudy periods with a chance of showers. Wind 30 to 50 km/h.
Friday, December 19th, 2025
Overnight Temperature: 2°C
Cloudy. Wind 40 to 60 km/h.
Morning Temperature: -3°C
Sunny with cloudy periods. Wind 30 to 50 km/h.
Afternoon Temperature: -5°C
Cloudy. Windy.
Evening Temperature: -4°C
Cloudy.
Saturday, December 20th, 2025
Overnight Temperature: -3°C
Cloudy with flurries likely. Windy at times.
Morning Temperature: 1°C
Cloudy with a few showers. Showers possibly mixed with wet flurries. Windy at times.
Afternoon Temperature: 9°C
Cloudy with a few showers. Wind 30 to 50 km/h.
Evening Temperature: 8°C
Cloudy with a few showers. Wind 40 to 60 km/h.
Sunday, December 21st, 2025
Overnight Temperature: 2°C
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy at times.
Morning Temperature: 0°C
Cloudy. Windy.
Afternoon Temperature: -2°C
A mix of cloud and sun. Windy at times.
Evening Temperature: -4°C
Clear with cloudy periods. Windy at times.





 

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12:00 PM  -2°C
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This WeatherCity Weather Forecast for Grimsby, 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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