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September 12th, 2026 :: 6:49 pm EDT   

Local Weather Report for
Chatham
Ontario, Canada

 Chatham Weather Forecast Summary  
 
Today
Sep 12th
Sunday
Sep 13th
Monday
Sep 14th
Tuesday
Sep 15th
Wednesday
Sep 16th
Mostly Sunny Mostly Sunny Mostly Sunny Mix of Sun and Cloud Mix of Sun and Cloud
26°C
26°C
11°C
21°C
10°C
24°C
15°C
26°C
17°C
 
 Chatham Detailed Weather Forecast  
 
Saturday, September 12th, 2026
Evening Temperature: 21°C
Mostly clear. Chance of a thunderstorm. Windy at times.
Sunday, September 13th, 2026
Overnight Temperature: 19°C
Clear. Slight chance of a thunderstorm.
Morning Temperature: 19°C
Sunny.
Afternoon Temperature: 26°C
Sunny with cloudy periods. Windy.
Evening Temperature: 14°C
Clear with cloudy periods. Windy at times.
Monday, September 14th, 2026
Overnight Temperature: 10°C
Clear.
Morning Temperature: 14°C
Sunny.
Afternoon Temperature: 21°C
Mostly sunny.
Evening Temperature: 15°C
A mix of clear and cloudy skies.
Tuesday, September 15th, 2026
Overnight Temperature: 16°C
A mix of clear and cloudy skies.
Morning Temperature: 18°C
A mix of sun and cloud. Windy at times.
Afternoon Temperature: 23°C
A mix of cloud and sun with a slight chance of showers. Windy at times.
Evening Temperature: 20°C
A mix of cloudy and clear skies with a chance of showers.
Wednesday, September 16th, 2026
Overnight Temperature: 21°C
A mix of clear and cloudy skies with a chance of showers.
Morning Temperature: 21°C
Mostly cloudy with a chance of showers.
Afternoon Temperature: 26°C
Mostly sunny. Windy at times.
Evening Temperature: 18°C
A mix of cloudy and clear skies. Windy at times.
Thursday, September 17th, 2026
Overnight Temperature: 18°C
A mix of cloudy and clear skies.
Morning Temperature: 20°C
A mix of sun and cloud.
Afternoon Temperature: 24°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 18°C
A mix of cloudy and clear skies.
Friday, September 18th, 2026
Overnight Temperature: 15°C
Mostly clear.
Morning Temperature: 18°C
Mostly sunny. Windy at times.
Afternoon Temperature: 24°C
Mostly sunny.
Evening Temperature: 16°C
Mostly clear.
Saturday, September 19th, 2026
Overnight Temperature: 13°C
Mostly clear.
Morning Temperature: 17°C
Sunny.
Afternoon Temperature: 25°C
Sunny.
Evening Temperature: 18°C
Mostly cloudy.
Sunday, September 20th, 2026
Overnight Temperature: 17°C
Cloudy.
Morning Temperature: 14°C
Cloudy with showers likely. Windy at times.
Afternoon Temperature: 14°C
Cloudy with showers likely.
Evening Temperature: 15°C
A mix of clear and cloudy skies with a slight chance of showers.





 

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This WeatherCity Weather Forecast for Chatham, 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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