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January 18th, 2026 :: 7:38 am EST   

Local Weather Report for
Marathon
Ontario, Canada

 Marathon Weather Forecast Summary  
 
Today
Jan 18th 		Monday
Jan 19th 		Tuesday
Jan 20th 		Wednesday
Jan 21st 		Thursday
Jan 22nd
Cloudy Cloudy Cloudy Cloudy Cloudy
-14°C
 -20°C
-29°C		 -17°C
-27°C		 -12°C
-21°C		 -20°C
-32°C
 
 Marathon Detailed Weather Forecast  
 
Sunday, January 18th, 2026
Morning Temperature: -18°C
Cloudy.
Afternoon Temperature: -15°C
Cloudy.
Evening Temperature: -17°C
Cloudy. Windy at times.
Monday, January 19th, 2026
Overnight Temperature: -21°C
Cloudy. Windy at times.
Morning Temperature: -22°C
Cloudy.
Afternoon Temperature: -23°C
Cloudy.
Evening Temperature: -28°C
Cloudy.
Tuesday, January 20th, 2026
Overnight Temperature: -27°C
Cloudy with a slight chance of flurries.
Morning Temperature: -21°C
Cloudy with a chance of flurries. Windy at times.
Afternoon Temperature: -19°C
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -20°C
Cloudy with a chance of flurries.
Wednesday, January 21st, 2026
Overnight Temperature: -21°C
Cloudy with a chance of flurries.
Morning Temperature: -14°C
Cloudy.
Afternoon Temperature: -13°C
Cloudy with a slight chance of flurries.
Evening Temperature: -18°C
Cloudy with a slight chance of flurries.
Thursday, January 22nd, 2026
Overnight Temperature: -21°C
Cloudy with a slight chance of flurries.
Morning Temperature: -23°C
Cloudy.
Afternoon Temperature: -24°C
Cloudy with a chance of flurries.
Evening Temperature: -30°C
Cloudy with a slight chance of flurries.
Friday, January 23rd, 2026
Overnight Temperature: -32°C
Cloudy with a chance of flurries.
Morning Temperature: -27°C
Cloudy with a slight chance of flurries.
Afternoon Temperature: -29°C
Cloudy.
Evening Temperature: -39°C
Clear with cloudy periods.
Saturday, January 24th, 2026
Overnight Temperature: -42°C
A mix of cloudy and clear skies.
Morning Temperature: -31°C
Cloudy.
Afternoon Temperature: -29°C
Cloudy.
Evening Temperature: -34°C
A mix of cloudy and clear skies.
Sunday, January 25th, 2026
Overnight Temperature: -33°C
Mostly cloudy.
Morning Temperature: -24°C
Cloudy. Windy at times.
Afternoon Temperature: -22°C
Cloudy with a chance of flurries. Windy at times.
Evening Temperature: -23°C
Cloudy.
Monday, January 26th, 2026
Overnight Temperature: -27°C
Clear with cloudy periods.
Morning Temperature: -22°C
Cloudy.
Afternoon Temperature: -23°C
Cloudy.
Evening Temperature: -29°C
Clear with cloudy periods.



 

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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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