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December 12th, 2025 :: 4:39 am EST   

Local Weather Report for
Greenstone
Ontario, Canada

 Greenstone Weather Forecast Summary  
 
Today
Dec 12th
Saturday
Dec 13th
Sunday
Dec 14th
Monday
Dec 15th
Tuesday
Dec 16th
Cloudy Cloudy Cloudy Cloudy Cloudy
-7°C
-17°C
-18°C
-9°C
-19°C
-8°C
-20°C
1°C
-19°C
 
 Greenstone Detailed Weather Forecast  
 
Friday, December 12th, 2025
Morning Temperature: -9°C
Cloudy.
Afternoon Temperature: -8°C
Cloudy with a chance of flurries.
Evening Temperature: -15°C
Cloudy with a chance of flurries. Windy at times.
Saturday, December 13th, 2025
Overnight Temperature: -17°C
Cloudy with a chance of flurries. Windy at times.
Morning Temperature: -17°C
Cloudy with a chance of flurries. Windy at times.
Afternoon Temperature: -17°C
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -17°C
Cloudy with a slight chance of flurries. Windy at times.
Sunday, December 14th, 2025
Overnight Temperature: -19°C
Cloudy. Windy at times.
Morning Temperature: -14°C
Cloudy.
Afternoon Temperature: -12°C
Cloudy.
Evening Temperature: -11°C
Cloudy. Windy at times.
Monday, December 15th, 2025
Overnight Temperature: -9°C
Cloudy. Windy at times.
Morning Temperature: -11°C
Cloudy.
Afternoon Temperature: -14°C
Cloudy.
Evening Temperature: -19°C
Cloudy.
Tuesday, December 16th, 2025
Overnight Temperature: -17°C
Cloudy.
Morning Temperature: -5°C
Cloudy. Windy.
Afternoon Temperature: -2°C
Cloudy with a chance of flurries or showers. Windy.
Evening Temperature: 1°C
Cloudy. Windy at times.
Wednesday, December 17th, 2025
Overnight Temperature: -2°C
Cloudy with a chance of flurries or showers. Risk of freezing rain. Windy.
Morning Temperature: -7°C
Cloudy. Windy at times.
Afternoon Temperature: -11°C
Cloudy.
Evening Temperature: -12°C
Cloudy.
Thursday, December 18th, 2025
Overnight Temperature: -10°C
Cloudy with a chance of flurries.
Morning Temperature: -6°C
Cloudy with flurries likely.
Afternoon Temperature: -4°C
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -10°C
Cloudy. Windy at times.
Friday, December 19th, 2025
Overnight Temperature: -13°C
Cloudy. Windy at times.
Morning Temperature: -17°C
Cloudy. Windy at times.
Afternoon Temperature: -19°C
Cloudy.
Evening Temperature: -24°C
Clear.
Saturday, December 20th, 2025
Overnight Temperature: -22°C
A mix of cloudy and clear skies.
Morning Temperature: -15°C
Cloudy.
Afternoon Temperature: -12°C
Cloudy with a slight chance of flurries.
Evening Temperature: -11°C
Cloudy with flurries likely.





 

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This WeatherCity Weather Forecast for Greenstone, 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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