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June 25th, 2026 :: 2:55 am EDT   

Local Weather Report for
Marathon
Ontario, Canada

 Marathon Weather Forecast Summary  
 
Today
Jun 25th 		Friday
Jun 26th 		Saturday
Jun 27th 		Sunday
Jun 28th 		Monday
Jun 29th
Mix of Sun and Cloud Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
22°C
 23°C
11°C		 25°C
12°C		 27°C
15°C		 28°C
20°C
 
 Marathon Detailed Weather Forecast  
 
Thursday, June 25th, 2026
Overnight Temperature: 10°C
Clear with cloudy periods.
Morning Temperature: 16°C
A mix of cloud and sun.
Afternoon Temperature: 22°C
A mix of sun and cloud.
Evening Temperature: 15°C
A mix of clear and cloudy skies.
Friday, June 26th, 2026
Overnight Temperature: 11°C
Clear.
Morning Temperature: 19°C
Sunny.
Afternoon Temperature: 20°C
Sunny with cloudy periods.
Evening Temperature: 16°C
A mix of cloudy and clear skies.
Saturday, June 27th, 2026
Overnight Temperature: 13°C
Clear with cloudy periods.
Morning Temperature: 20°C
Sunny.
Afternoon Temperature: 24°C
Mostly sunny.
Evening Temperature: 19°C
Clear with cloudy periods.
Sunday, June 28th, 2026
Overnight Temperature: 15°C
A mix of clear and cloudy skies.
Morning Temperature: 22°C
Mostly sunny. Windy at times.
Afternoon Temperature: 26°C
Mostly sunny. Windy at times.
Evening Temperature: 22°C
Clear. Windy at times.
Monday, June 29th, 2026
Overnight Temperature: 21°C
A mix of clear and cloudy skies. Windy at times.
Morning Temperature: 21°C
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 26°C
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Evening Temperature: 27°C
Mostly clear. Chance of a thunderstorm. Windy at times.
Tuesday, June 30th, 2026
Overnight Temperature: 23°C
Mostly clear. Chance of a thunderstorm. Windy at times.
Morning Temperature: 25°C
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 25°C
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Evening Temperature: 21°C
Clear with cloudy periods.
Wednesday, July 1st, 2026
Overnight Temperature: 17°C
Clear.
Morning Temperature: 21°C
Sunny.
Afternoon Temperature: 27°C
Mostly sunny.
Evening Temperature: 18°C
A mix of cloudy and clear skies.
Thursday, July 2nd, 2026
Overnight Temperature: 15°C
Clear with cloudy periods.
Morning Temperature: 22°C
Sunny.
Afternoon Temperature: 28°C
Sunny. Slight chance of a thunderstorm.
Evening Temperature: 20°C
Mostly clear.



 

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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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