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February 25th, 2026 :: 11:01 am EST   

Local Weather Report for
St Thomas
Ontario, Canada

 St Thomas Weather Forecast Summary  
 
Today
Feb 25th
Thursday
Feb 26th
Friday
Feb 27th
Saturday
Feb 28th
Sunday
Mar 1st
Cloudy Cloudy Cloudy Mix of rain and snow Cloudy
-1°C
-4°C
-9°C
2°C
-8°C
2°C
-4°C
-5°C
-14°C
 
 St Thomas Detailed Weather Forecast  
 
Wednesday, February 25th, 2026
Afternoon Temperature: -4°C
Sunny with cloudy periods with a slight chance of flurries. Windy.
Evening Temperature: -7°C
A mix of cloudy and clear skies with a chance of flurries. Windy at times.
Thursday, February 26th, 2026
Overnight Temperature: -9°C
A mix of cloudy and clear skies.
Morning Temperature: -5°C
Cloudy.
Afternoon Temperature: -6°C
Cloudy.
Evening Temperature: -9°C
Clear.
Friday, February 27th, 2026
Overnight Temperature: -8°C
Mostly clear.
Morning Temperature: -1°C
Cloudy. Windy at times.
Afternoon Temperature: 0°C
Cloudy. Windy at times.
Evening Temperature: 1°C
Cloudy. Windy.
Saturday, February 28th, 2026
Overnight Temperature: 1°C
Cloudy. Windy.
Morning Temperature: 2°C
Cloudy. Windy at times.
Afternoon Temperature: -2°C
Cloudy. Windy at times.
Evening Temperature: -4°C
Cloudy with flurries likely.
Sunday, March 1st, 2026
Overnight Temperature: -7°C
Cloudy with a chance of flurries. Windy at times.
Morning Temperature: -8°C
Cloudy. Windy at times.
Afternoon Temperature: -10°C
Cloudy. Windy.
Evening Temperature: -14°C
Cloudy.
Monday, March 2nd, 2026
Overnight Temperature: -14°C
Clear with cloudy periods.
Morning Temperature: -10°C
Sunny. Windy at times.
Afternoon Temperature: -8°C
Cloudy. Windy at times.
Evening Temperature: -8°C
Cloudy. Windy at times.
Tuesday, March 3rd, 2026
Overnight Temperature: -6°C
Cloudy.
Morning Temperature: -1°C
A mix of cloud and sun with a chance of flurries or showers.
Afternoon Temperature: 1°C
A mix of cloud and sun.
Evening Temperature: -2°C
Cloudy.
Wednesday, March 4th, 2026
Overnight Temperature: -2°C
Cloudy.
Morning Temperature: 3°C
A mix of cloud and sun. Windy.
Afternoon Temperature: 4°C
Cloudy. Windy.
Evening Temperature: -4°C
A mix of cloudy and clear skies. Windy.





 

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This WeatherCity Weather Forecast for St Thomas, 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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