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September 19th, 2025 :: 9:21 am EDT   

Local Weather Report for
Marathon
Ontario, Canada

 Current Marathon Weather Conditions Updated September 19th at 8:00 am 
Temperature:6°C Dew Point:5°C
Barometer:102.4 kPa Wind:N 14 Km/h
Humidity:93.3% Visibility:0 Km
 
 Marathon Weather Forecast Summary  
 
Today
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Tuesday
Sep 23rd
Mix of Cloud and Sun Cloudy Cloudy Cloudy Mostly Sunny
18°C
19°C
7°C
15°C
12°C
18°C
13°C
19°C
8°C
 
 Marathon Detailed Weather Forecast  
 
Friday, September 19th, 2025
Morning Temperature: 15°C
Sunny.
Afternoon Temperature: 14°C
A mix of cloud and sun.
Evening Temperature: 9°C
A mix of cloudy and clear skies.
Saturday, September 20th, 2025
Overnight Temperature: 8°C
A mix of clear and cloudy skies.
Morning Temperature: 17°C
A mix of cloud and sun.
Afternoon Temperature: 15°C
A mix of cloud and sun.
Evening Temperature: 12°C
Cloudy.
Sunday, September 21st, 2025
Overnight Temperature: 12°C
Cloudy with a chance of showers.
Morning Temperature: 14°C
Cloudy with a chance of showers.
Afternoon Temperature: 15°C
Cloudy.
Evening Temperature: 14°C
A mix of cloudy and clear skies.
Monday, September 22nd, 2025
Overnight Temperature: 14°C
A mix of cloudy and clear skies.
Morning Temperature: 17°C
Cloudy.
Afternoon Temperature: 16°C
Cloudy.
Evening Temperature: 13°C
Clear with cloudy periods.
Tuesday, September 23rd, 2025
Overnight Temperature: 12°C
Clear with cloudy periods.
Morning Temperature: 18°C
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 15°C
Sunny.
Evening Temperature: 9°C
Clear.
Wednesday, September 24th, 2025
Overnight Temperature: 7°C
Clear.
Morning Temperature: 16°C
Sunny.
Afternoon Temperature: 15°C
Sunny.
Evening Temperature: 9°C
Clear.
Thursday, September 25th, 2025
Overnight Temperature: 7°C
Clear.
Morning Temperature: 18°C
Sunny.
Afternoon Temperature: 13°C
Sunny.
Evening Temperature: 9°C
Clear.
Friday, September 26th, 2025
Overnight Temperature: 8°C
Clear.
Morning Temperature: 18°C
Sunny.
Afternoon Temperature: 13°C
Sunny.
Evening Temperature: 9°C
Clear.
Saturday, September 27th, 2025
Overnight Temperature: 9°C
Clear.
Morning Temperature: 18°C
Sunny. Windy at times.
Afternoon Temperature: 14°C
Cloudy.
Evening Temperature: 11°C
A mix of cloudy and clear skies.





 

  [ Local Weather Report ]
Peninsula, ON 
8:00 AM  6°C
 
 
Heron Bay, ON 
8:00 AM  5°C
 
 
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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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