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December 4th, 2025 :: 12:55 pm EST   

Local Weather Report for
Sarnia
Ontario, Canada

 Current Sarnia Weather Conditions Updated December 4th at 12:00 pm 
Overcast
Temperature:-6°C Dew Point:-14°C
Barometer:102.6 kPa Wind:N 45 Km/h
Humidity:51.2% Visibility:0 Km
 
 Sarnia Weather Forecast Summary  
 
Today
Dec 4th
Friday
Dec 5th
Saturday
Dec 6th
Sunday
Dec 7th
Monday
Dec 8th
Cloudy Cloudy Cloudy Cloudy Cloudy
-4°C
-4°C
-11°C
0°C
-4°C
-2°C
-5°C
-5°C
-11°C
 
 Sarnia Detailed Weather Forecast  
 
Thursday, December 4th, 2025
Afternoon Temperature: -8°C
Cloudy. Windy at times.
Evening Temperature: -11°C
Clear.
Friday, December 5th, 2025
Overnight Temperature: -11°C
A mix of cloudy and clear skies.
Morning Temperature: -5°C
Cloudy. Windy at times.
Afternoon Temperature: -6°C
Cloudy. Windy at times.
Evening Temperature: -4°C
Cloudy. Windy at times.
Saturday, December 6th, 2025
Overnight Temperature: -3°C
Cloudy. Windy at times.
Morning Temperature: -1°C
Cloudy. Windy at times.
Afternoon Temperature: 0°C
Cloudy. Windy at times.
Evening Temperature: -3°C
Cloudy.
Sunday, December 7th, 2025
Overnight Temperature: -3°C
Cloudy.
Morning Temperature: -2°C
Cloudy. Windy at times.
Afternoon Temperature: -3°C
Cloudy with a slight chance of flurries. Windy.
Evening Temperature: -4°C
Cloudy with a chance of flurries. Windy.
Monday, December 8th, 2025
Overnight Temperature: -9°C
Cloudy with a chance of flurries.
Morning Temperature: -8°C
A mix of cloud and sun.
Afternoon Temperature: -7°C
Cloudy.
Evening Temperature: -6°C
Cloudy. Windy at times.
Tuesday, December 9th, 2025
Overnight Temperature: -5°C
Cloudy. Windy at times.
Morning Temperature: -3°C
Cloudy with flurries likely. Windy.
Afternoon Temperature: -1°C
Cloudy with flurries likely. Windy at times.
Evening Temperature: 1°C
Cloudy with flurries or showers likely. Windy at times.
Wednesday, December 10th, 2025
Overnight Temperature: 1°C
Cloudy with flurries or showers likely. Risk of freezing rain. Windy.
Morning Temperature: 2°C
Cloudy with a few showers. Showers possibly mixed with wet flurries. Windy.
Afternoon Temperature: 2°C
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy.
Evening Temperature: 1°C
Cloudy with a chance of flurries or showers. Risk of freezing rain. Windy.
Thursday, December 11th, 2025
Overnight Temperature: 0°C
Cloudy. Windy at times.
Morning Temperature: -1°C
A mix of cloud and sun. Windy at times.
Afternoon Temperature: -3°C
Cloudy. Windy at times.
Evening Temperature: -4°C
Clear with cloudy periods. Windy at times.
Friday, December 12th, 2025
Overnight Temperature: -5°C
Cloudy. Windy at times.
Morning Temperature: -4°C
Sunny. Windy.
Afternoon Temperature: -4°C
Cloudy with sunny periods. Windy.
Evening Temperature: -6°C
Clear with cloudy periods. Windy.





 

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This WeatherCity Weather Forecast for Sarnia, 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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