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October 12th, 2026 :: 11:53 am EDT   

Local Weather Report for
Saint Marys
Ontario, Canada

 Saint Marys Weather Forecast Summary  
 
Today
Oct 12th
Tuesday
Oct 13th
Wednesday
Oct 14th
Thursday
Oct 15th
Friday
Oct 16th
Mostly Sunny Mostly Sunny Mix of Sun and Cloud Mix of Cloud and Sun Mostly Cloudy with Showers
22°C
27°C
16°C
16°C
9°C
15°C
7°C
13°C
8°C
 
 Saint Marys Detailed Weather Forecast  
 
Monday, October 12th, 2026
Afternoon Temperature: 22°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 17°C
Clear.
Tuesday, October 13th, 2026
Overnight Temperature: 17°C
A mix of cloudy and clear skies with a chance of showers. Windy at times.
Morning Temperature: 19°C
Mostly sunny with a chance of showers. Windy.
Afternoon Temperature: 26°C
Sunny with a chance of showers or thundershowers. Windy.
Evening Temperature: 18°C
Clear. Windy at times.
Wednesday, October 14th, 2026
Overnight Temperature: 13°C
Clear.
Morning Temperature: 14°C
Cloudy.
Afternoon Temperature: 15°C
Sunny with cloudy periods with a slight chance of showers. Windy at times.
Evening Temperature: 10°C
Clear with cloudy periods. Windy at times.
Thursday, October 15th, 2026
Overnight Temperature: 8°C
A mix of cloudy and clear skies.
Morning Temperature: 9°C
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 14°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 9°C
Cloudy with showers likely. Windy at times.
Friday, October 16th, 2026
Overnight Temperature: 11°C
Mostly cloudy with showers likely. Windy at times.
Morning Temperature: 12°C
Cloudy with sunny periods with a slight chance of showers. Wind 30 to 50 km/h.
Afternoon Temperature: 11°C
Sunny with cloudy periods with a chance of showers. Wind 30 to 50 km/h.
Evening Temperature: 9°C
A mix of clear and cloudy skies with a chance of showers. Windy.
Saturday, October 17th, 2026
Overnight Temperature: 3°C
A mix of clear and cloudy skies with a chance of showers. Showers possibly mixed with wet flurries. Wind 30 to 50 km/h.
Morning Temperature: 1°C
Mostly sunny with a slight chance of showers or wet flurries. Windy.
Afternoon Temperature: 5°C
Sunny. Windy.
Evening Temperature: 1°C
Clear.
Sunday, October 18th, 2026
Overnight Temperature: 0°C
Clear.
Morning Temperature: 5°C
Sunny. Windy.
Afternoon Temperature: 11°C
Sunny. Windy.
Evening Temperature: 7°C
Clear. Windy at times.
Monday, October 19th, 2026
Overnight Temperature: 6°C
Clear.
Morning Temperature: 9°C
Sunny. Windy at times.
Afternoon Temperature: 17°C
Sunny. Windy at times.
Evening Temperature: 12°C
A mix of clear and cloudy skies.
Tuesday, October 20th, 2026
Overnight Temperature: 11°C
A mix of cloudy and clear skies.
Morning Temperature: 13°C
Mostly cloudy.
Afternoon Temperature: 18°C
Sunny.
Evening Temperature: 12°C
Clear.





 

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This WeatherCity Weather Forecast for Saint Marys, 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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