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July 12th, 2025 :: 2:47 am EDT   

Local Weather Report for
St Thomas
Ontario, Canada

 St Thomas Weather Forecast Summary  
 
Today
Jul 12th 		Sunday
Jul 13th 		Monday
Jul 14th 		Tuesday
Jul 15th 		Wednesday
Jul 16th
Thundershowers Mix of Cloud and Sun Cloudy Cloudy Thundershowers
30°C
 27°C
18°C		 28°C
17°C		 29°C
18°C		 29°C
19°C
 
 St Thomas Detailed Weather Forecast  
 
Saturday, July 12th, 2025
Overnight Temperature: 21°C
Cloudy with clear periods with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 29°C
Sunny. Chance of a thunderstorm. Windy.
Afternoon Temperature: 28°C
Sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 22°C
Cloudy with a few showers. Chance of a thunderstorm.
Sunday, July 13th, 2025
Overnight Temperature: 22°C
Clear with cloudy periods with a chance of showers or thundershowers.
Morning Temperature: 27°C
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 25°C
Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 19°C
A mix of cloudy and clear skies.
Monday, July 14th, 2025
Overnight Temperature: 18°C
Cloudy.
Morning Temperature: 26°C
Sunny.
Afternoon Temperature: 26°C
Sunny.
Evening Temperature: 18°C
Clear.
Tuesday, July 15th, 2025
Overnight Temperature: 19°C
A mix of cloudy and clear skies.
Morning Temperature: 28°C
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 27°C
Cloudy. Chance of a thunderstorm. Windy at times.
Evening Temperature: 19°C
Cloudy.
Wednesday, July 16th, 2025
Overnight Temperature: 22°C
Cloudy. Slight chance of a thunderstorm.
Morning Temperature: 29°C
Cloudy with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 25°C
Cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 19°C
Cloudy with a chance of showers.
Thursday, July 17th, 2025
Overnight Temperature: 19°C
Cloudy.
Morning Temperature: 23°C
Cloudy. Slight chance of a thunderstorm.
Afternoon Temperature: 26°C
Cloudy with a slight chance of showers or thundershowers.
Evening Temperature: 21°C
Clear with cloudy periods.
Friday, July 18th, 2025
Overnight Temperature: 19°C
Cloudy with a slight chance of showers.
Morning Temperature: 19°C
Cloudy with showers likely.
Afternoon Temperature: 22°C
Cloudy. Windy at times.
Evening Temperature: 15°C
Clear.
Saturday, July 19th, 2025
Overnight Temperature: 15°C
Clear.
Morning Temperature: 25°C
Sunny.
Afternoon Temperature: 25°C
Sunny.
Evening Temperature: 17°C
Clear.



 

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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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