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January 12th, 2026 :: 8:28 pm EST   

Local Weather Report for
St Marys
Ontario, Canada

 St Marys Weather Forecast Summary  
 
Today
Jan 12th 		Tuesday
Jan 13th 		Wednesday
Jan 14th 		Thursday
Jan 15th 		Friday
Jan 16th
Cloudy Cloudy Cloudy Cloudy Cloudy
-1°C
 2°C
-3°C		 1°C
-9°C		 -10°C
-13°C		 -4°C
-11°C
 
 St Marys Detailed Weather Forecast  
 
Monday, January 12th, 2026
Evening Temperature: -2°C
A mix of cloudy and clear skies. Windy at times.
Tuesday, January 13th, 2026
Overnight Temperature: -3°C
Cloudy. Windy at times.
Morning Temperature: 0°C
Cloudy. Windy.
Afternoon Temperature: 2°C
Cloudy. Windy.
Evening Temperature: 1°C
Cloudy. Windy.
Wednesday, January 14th, 2026
Overnight Temperature: 1°C
Cloudy. Windy at times.
Morning Temperature: 0°C
Cloudy with a chance of flurries or showers. Windy at times.
Afternoon Temperature: -3°C
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -8°C
Cloudy with a slight chance of flurries. Windy.
Thursday, January 15th, 2026
Overnight Temperature: -11°C
Cloudy with a chance of flurries. Windy.
Morning Temperature: -12°C
Cloudy with a chance of flurries. Windy.
Afternoon Temperature: -11°C
Sunny with cloudy periods. Windy.
Evening Temperature: -11°C
Clear with cloudy periods. Windy at times.
Friday, January 16th, 2026
Overnight Temperature: -11°C
Cloudy. Windy at times.
Morning Temperature: -7°C
Cloudy. Windy at times.
Afternoon Temperature: -5°C
Cloudy. Windy at times.
Evening Temperature: -4°C
Cloudy with a slight chance of flurries. Windy.
Saturday, January 17th, 2026
Overnight Temperature: -3°C
Cloudy with flurries likely. Windy at times.
Morning Temperature: -2°C
Cloudy with a chance of flurries. Windy at times.
Afternoon Temperature: -2°C
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -5°C
Cloudy with flurries likely. Windy.
Sunday, January 18th, 2026
Overnight Temperature: -10°C
Cloudy with flurries likely. Windy.
Morning Temperature: -12°C
Cloudy with a chance of flurries. Windy.
Afternoon Temperature: -13°C
Cloudy with a chance of flurries. Windy.
Evening Temperature: -12°C
Cloudy with a chance of flurries. Windy at times.
Monday, January 19th, 2026
Overnight Temperature: -15°C
Cloudy with a slight chance of flurries. Windy at times.
Morning Temperature: -8°C
Cloudy with flurries likely. Windy.
Afternoon Temperature: -5°C
Cloudy with a few flurries. Windy.
Evening Temperature: -8°C
Cloudy with flurries likely. Wind 30 to 50 km/h.
Tuesday, January 20th, 2026
Overnight Temperature: -9°C
Cloudy with a chance of flurries. Wind 30 to 50 km/h.
Morning Temperature: -8°C
Cloudy with a slight chance of flurries. Windy.
Afternoon Temperature: -8°C
Cloudy with a chance of flurries.
Evening Temperature: -10°C
Cloudy with a chance of flurries.



 

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This WeatherCity Weather Forecast for St 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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