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January 17th, 2026 :: 6:36 am EST   

Local Weather Report for
Marathon
Ontario, Canada

 Marathon Weather Forecast Summary  
 
Today
Jan 17th 		Sunday
Jan 18th 		Monday
Jan 19th 		Tuesday
Jan 20th 		Wednesday
Jan 21st
Cloudy Cloudy Cloudy Cloudy Cloudy
-11°C
 -14°C
-29°C		 -21°C
-30°C		 -12°C
-25°C		 -17°C
-29°C
 
 Marathon Detailed Weather Forecast  
 
Saturday, January 17th, 2026
Morning Temperature: -12°C
Cloudy. Windy at times.
Afternoon Temperature: -15°C
Cloudy. Windy at times.
Evening Temperature: -26°C
A mix of cloudy and clear skies.
Sunday, January 18th, 2026
Overnight Temperature: -27°C
Cloudy.
Morning Temperature: -18°C
Cloudy.
Afternoon Temperature: -15°C
Cloudy.
Evening Temperature: -17°C
Cloudy with a chance of flurries. Windy at times.
Monday, January 19th, 2026
Overnight Temperature: -21°C
Cloudy. Windy at times.
Morning Temperature: -23°C
Cloudy.
Afternoon Temperature: -25°C
Cloudy.
Evening Temperature: -29°C
Cloudy with a slight chance of flurries.
Tuesday, January 20th, 2026
Overnight Temperature: -24°C
Cloudy with a chance of flurries.
Morning Temperature: -18°C
Cloudy with a chance of flurries.
Afternoon Temperature: -12°C
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -18°C
Cloudy with a chance of flurries.
Wednesday, January 21st, 2026
Overnight Temperature: -18°C
Cloudy.
Morning Temperature: -17°C
Cloudy with a chance of flurries.
Afternoon Temperature: -20°C
Cloudy.
Evening Temperature: -27°C
Cloudy with clear periods.
Thursday, January 22nd, 2026
Overnight Temperature: -30°C
Cloudy with clear periods with a chance of flurries.
Morning Temperature: -23°C
Cloudy with a chance of flurries.
Afternoon Temperature: -22°C
Cloudy with a chance of flurries.
Evening Temperature: -29°C
Cloudy.
Friday, January 23rd, 2026
Overnight Temperature: -37°C
Clear with cloudy periods.
Morning Temperature: -30°C
Cloudy.
Afternoon Temperature: -31°C
Cloudy.
Evening Temperature: -39°C
Clear with cloudy periods.
Saturday, January 24th, 2026
Overnight Temperature: -39°C
Clear with cloudy periods.
Morning Temperature: -27°C
Sunny with cloudy periods.
Afternoon Temperature: -20°C
Cloudy with a chance of flurries.
Evening Temperature: -24°C
Cloudy with a chance of flurries.
Sunday, January 25th, 2026
Overnight Temperature: -25°C
Cloudy with a chance of flurries.
Morning Temperature: -21°C
Cloudy. Windy at times.
Afternoon Temperature: -18°C
Cloudy. Windy at times.
Evening Temperature: -27°C
A mix of cloudy and clear skies.



 

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This WeatherCity Weather Forecast for Marathon, 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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