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October 20th, 2025 :: 9:09 am EDT   

Local Weather Report for
Saint Thomas
Ontario, Canada

 Saint Thomas Weather Forecast Summary  
 
Today
Oct 20th
Tuesday
Oct 21st
Wednesday
Oct 22nd
Thursday
Oct 23rd
Friday
Oct 24th
Cloudy Showers Cloudy Cloudy Mostly Sunny
13°C
14°C
6°C
8°C
5°C
9°C
4°C
10°C
3°C
 
 Saint Thomas Detailed Weather Forecast  
 
Monday, October 20th, 2025
Morning Temperature: 11°C
Cloudy. Windy.
Afternoon Temperature: 10°C
Sunny. Windy at times.
Evening Temperature: 8°C
Clear.
Tuesday, October 21st, 2025
Overnight Temperature: 10°C
Cloudy. Windy at times.
Morning Temperature: 12°C
Cloudy with showers likely. Windy.
Afternoon Temperature: 12°C
A mix of cloud and sun with a slight chance of showers. Windy.
Evening Temperature: 7°C
Cloudy with showers likely. Windy at times.
Wednesday, October 22nd, 2025
Overnight Temperature: 5°C
Cloudy. Windy at times.
Morning Temperature: 7°C
Cloudy with a chance of showers. Windy.
Afternoon Temperature: 7°C
Cloudy with a chance of showers. Windy.
Evening Temperature: 6°C
Cloudy with a slight chance of showers. Windy.
Thursday, October 23rd, 2025
Overnight Temperature: 5°C
Cloudy. Windy at times.
Morning Temperature: 8°C
Cloudy. Windy.
Afternoon Temperature: 7°C
A mix of cloud and sun with a chance of showers. Windy at times.
Evening Temperature: 5°C
Clear with cloudy periods with a slight chance of showers. Showers possibly mixed with wet flurries. Windy at times.
Friday, October 24th, 2025
Overnight Temperature: 3°C
Clear. Windy at times.
Morning Temperature: 9°C
Sunny. Windy.
Afternoon Temperature: 8°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 4°C
Mostly clear.
Saturday, October 25th, 2025
Overnight Temperature: 3°C
Cloudy.
Morning Temperature: 10°C
A mix of cloud and sun.
Afternoon Temperature: 9°C
Cloudy.
Evening Temperature: 5°C
Cloudy.
Sunday, October 26th, 2025
Overnight Temperature: 4°C
Cloudy.
Morning Temperature: 11°C
Cloudy. Windy at times.
Afternoon Temperature: 9°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 6°C
Clear. Windy at times.
Monday, October 27th, 2025
Overnight Temperature: 6°C
Clear. Windy.
Morning Temperature: 11°C
Sunny. Windy.
Afternoon Temperature: 8°C
Sunny. Windy.
Evening Temperature: 5°C
A mix of cloudy and clear skies. Windy.
Tuesday, October 28th, 2025
Overnight Temperature: 4°C
Clear with cloudy periods. Windy.
Morning Temperature: 10°C
A mix of cloud and sun. Wind 30 to 50 km/h.
Afternoon Temperature: 10°C
Cloudy. Wind 30 to 50 km/h.
Evening Temperature: 6°C
Cloudy with a few showers. Wind 30 to 50 km/h.





 

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This WeatherCity Weather Forecast for Saint 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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