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September 18th, 2025 :: 1:29 am EDT   

Local Weather Report for
New Tecumseth
Ontario, Canada

 Current New Tecumseth Weather Conditions Updated September 18th at 12:00 am 
Temperature:14°C Dew Point:11°C
Barometer:n/a Wind:calm
Humidity:82.1% Visibility:n/a
 
 New Tecumseth Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Cloudy Sunny Sunny Cloudy Cloudy
27°C
20°C
8°C
20°C
6°C
25°C
10°C
23°C
16°C
 
 New Tecumseth Detailed Weather Forecast  
 
Thursday, September 18th, 2025
Overnight Temperature: 14°C
Clear.
Morning Temperature: 25°C
A mix of cloud and sun.
Afternoon Temperature: 21°C
Cloudy. Windy at times.
Evening Temperature: 14°C
Clear.
Friday, September 19th, 2025
Overnight Temperature: 10°C
Clear.
Morning Temperature: 18°C
Sunny.
Afternoon Temperature: 16°C
Sunny. Windy at times.
Evening Temperature: 9°C
Clear.
Saturday, September 20th, 2025
Overnight Temperature: 7°C
Clear.
Morning Temperature: 18°C
Sunny.
Afternoon Temperature: 15°C
Sunny. Windy at times.
Evening Temperature: 9°C
Clear.
Sunday, September 21st, 2025
Overnight Temperature: 10°C
Clear. Windy at times.
Morning Temperature: 22°C
Sunny. Windy at times.
Afternoon Temperature: 21°C
Sunny with a slight chance of showers. Windy at times.
Evening Temperature: 17°C
Cloudy with a chance of showers. Windy at times.
Monday, September 22nd, 2025
Overnight Temperature: 16°C
Cloudy with a chance of showers.
Morning Temperature: 18°C
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 20°C
A mix of cloud and sun with a chance of showers. Slight chance of a thunderstorm.
Evening Temperature: 16°C
Mostly clear with a chance of showers.
Tuesday, September 23rd, 2025
Overnight Temperature: 16°C
Cloudy with a slight chance of showers.
Morning Temperature: 20°C
Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 21°C
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 18°C
Cloudy with a few showers. Windy at times.
Wednesday, September 24th, 2025
Overnight Temperature: 17°C
Cloudy with a chance of showers.
Morning Temperature: 22°C
Sunny. Windy at times.
Afternoon Temperature: 21°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 15°C
Cloudy with showers likely. Windy at times.
Thursday, September 25th, 2025
Overnight Temperature: 13°C
A mix of cloudy and clear skies.
Morning Temperature: 19°C
Cloudy.
Afternoon Temperature: 16°C
Cloudy with sunny periods with a slight chance of showers.
Evening Temperature: 11°C
A mix of cloudy and clear skies.





 

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This WeatherCity Weather Forecast for New Tecumseth, 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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