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August 8th, 2025 :: 9:32 am EDT   

Local Weather Report for
Thunder Bay
Ontario, Canada

 Current Thunder Bay Weather Conditions Updated August 8th at 8:00 am 
Partly Sunny
Temperature:64°F Dew Point:64°F
Barometer:29.89 inHg Wind:N 4 Mph
Humidity:100.0% Visibility:0M
 
 Thunder Bay Weather Forecast Summary  
 
Today
Aug 8th
Saturday
Aug 9th
Sunday
Aug 10th
Monday
Aug 11th
Tuesday
Aug 12th
Cloudy Showers Mix of Cloud and Sun Cloudy Cloudy
71°F
67°F
62°F
69°F
59°F
66°F
59°F
72°F
61°F
 
 Thunder Bay Detailed Weather Forecast  
 
Friday, August 8th, 2025
Morning Temperature: 69°F
A mix of cloud and sun. Slight chance of a thunderstorm.
Afternoon Temperature: 69°F
Cloudy. Chance of a thunderstorm.
Evening Temperature: 63°F
Cloudy.
Saturday, August 9th, 2025
Overnight Temperature: 63°F
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 65°F
Cloudy with showers likely. Windy at times.
Afternoon Temperature: 64°F
A mix of cloud and sun with a chance of showers. Windy at times.
Evening Temperature: 63°F
Mostly clear.
Sunday, August 10th, 2025
Overnight Temperature: 60°F
Clear.
Morning Temperature: 64°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 68°F
Sunny with cloudy periods. Windy.
Evening Temperature: 63°F
A mix of cloudy and clear skies.
Monday, August 11th, 2025
Overnight Temperature: 59°F
A mix of cloudy and clear skies.
Morning Temperature: 66°F
Cloudy.
Afternoon Temperature: 64°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 61°F
Cloudy.
Tuesday, August 12th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 71°F
Sunny. Windy at times.
Afternoon Temperature: 66°F
Mostly sunny.
Evening Temperature: 63°F
Clear.
Wednesday, August 13th, 2025
Overnight Temperature: 60°F
A mix of cloudy and clear skies.
Morning Temperature: 67°F
Mostly sunny.
Afternoon Temperature: 68°F
Mostly sunny.
Evening Temperature: 62°F
Cloudy with showers likely.
Thursday, August 14th, 2025
Overnight Temperature: 62°F
Clear with cloudy periods.
Morning Temperature: 70°F
Cloudy with a slight chance of showers.
Afternoon Temperature: 68°F
Cloudy with showers likely.
Evening Temperature: 64°F
Cloudy with showers likely.
Friday, August 15th, 2025
Overnight Temperature: 64°F
Cloudy with a few showers.
Morning Temperature: 64°F
Cloudy with a chance of showers.
Afternoon Temperature: 67°F
Cloudy with a chance of showers.
Evening Temperature: 63°F
Cloudy with a chance of showers.
Saturday, August 16th, 2025
Overnight Temperature: 64°F
Cloudy with showers likely.
Morning Temperature: 67°F
Cloudy with sunny periods with a chance of showers.
Afternoon Temperature: 68°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 64°F
Cloudy with showers likely.





 

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This WeatherCity Weather Forecast for Thunder Bay, 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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