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September 18th, 2025 :: 3:51 am EDT   

Local Weather Report for
Blenheim
Ontario, Canada

 Current Blenheim Weather Conditions Updated September 18th at 3:00 am 
moderate fog
Temperature:52°F Dew Point:52°F
Barometer:30.04 inHg Wind:N 4 Mph
Humidity:100.0% Visibility:0M
 
 Blenheim Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Mostly Sunny Sunny Cloudy Cloudy Cloudy
88°F
80°F
57°F
75°F
58°F
86°F
62°F
84°F
66°F
 
 Blenheim Detailed Weather Forecast  
 
Thursday, September 18th, 2025
Overnight Temperature: 57°F
Clear.
Morning Temperature: 81°F
Sunny.
Afternoon Temperature: 79°F
Sunny.
Evening Temperature: 62°F
A mix of cloudy and clear skies.
Friday, September 19th, 2025
Overnight Temperature: 58°F
Clear.
Morning Temperature: 76°F
Sunny.
Afternoon Temperature: 70°F
Sunny.
Evening Temperature: 57°F
Clear. Windy at times.
Saturday, September 20th, 2025
Overnight Temperature: 59°F
Cloudy. Windy at times.
Morning Temperature: 72°F
Cloudy. Windy.
Afternoon Temperature: 70°F
Cloudy. Windy at times.
Evening Temperature: 60°F
Cloudy. Windy at times.
Sunday, September 21st, 2025
Overnight Temperature: 63°F
Cloudy. Windy at times.
Morning Temperature: 78°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 80°F
Cloudy. Windy at times.
Evening Temperature: 70°F
Cloudy.
Monday, September 22nd, 2025
Overnight Temperature: 68°F
Cloudy. Windy at times.
Morning Temperature: 81°F
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 75°F
Cloudy with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 66°F
A mix of cloudy and clear skies with a chance of showers.
Tuesday, September 23rd, 2025
Overnight Temperature: 66°F
Cloudy with a chance of showers.
Morning Temperature: 78°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 79°F
Cloudy with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 66°F
A mix of cloudy and clear skies with showers likely.
Wednesday, September 24th, 2025
Overnight Temperature: 65°F
Cloudy with a chance of showers.
Morning Temperature: 79°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 75°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 67°F
Cloudy with a chance of showers.
Thursday, September 25th, 2025
Overnight Temperature: 65°F
Cloudy with a chance of showers.
Morning Temperature: 69°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 67°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 64°F
Cloudy with a few showers.
Friday, September 26th, 2025
Overnight Temperature: 63°F
Cloudy with a chance of showers.
Morning Temperature: 72°F
A mix of cloud and sun with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 65°F
Cloudy with showers likely. Slight chance of a thunderstorm. Windy.
Evening Temperature: 59°F
Clear. Windy at times.





 

  [ Local Weather Report ]
Raglan, ON 
 
Erieau, ON 
 
Ridgetown, ON 
 
Chatham, ON 
3:00 AM  52°F
moderate fog
 
Chatham-kent, ON 
3:00 AM  52°F
moderate fog
 
Merlin, ON 
3:00 AM  52°F
moderate fog
 
Thamesville, ON 
 
Dresden, ON 
 
Florence, ON 
 
Rodney, ON 

This WeatherCity Weather Forecast for Blenheim, 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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