Hourly Weather Forecast - Thunder Bay, Ontario, CA

12 AM
9°F
10%
13mph
WNW
Partly Cloudy
Humidity
74%
Feels like
-7°F
Dew Point
2°F
1 AM
9°F
10%
13mph
WNW
Partly Cloudy
Humidity
72%
Feels like
-7°F
Dew Point
2°F
2 AM
9°F
10%
13mph
WNW
Partly Cloudy
Humidity
70%
Feels like
-7°F
Dew Point
1°F
3 AM
8°F
10%
12mph
WNW
Partly Cloudy
Humidity
68%
Feels like
-7°F
Dew Point
0°F
4 AM
8°F
10%
12mph
WNW
Partly Cloudy
Humidity
66%
Feels like
-7°F
Dew Point
-1°F
5 AM
7°F
10%
12mph
WNW
Partly Cloudy
Humidity
65%
Feels like
-9°F
Dew Point
-3°F
6 AM
5°F
10%
11mph
WNW
Partly Cloudy
Humidity
66%
Feels like
-11°F
Dew Point
-4°F
7 AM
2°F
10%
11mph
WNW
Partly Cloudy
Humidity
68%
Feels like
-14°F
Dew Point
-6°F
8 AM
-1°F
10%
10mph
WNW
Very Cold
Humidity
75%
Feels like
-17°F
Dew Point
-7°F
8:45 AM
9 AM
-2°F
10%
9mph
WNW
Very Cold
Humidity
75%
Feels like
-17°F
Dew Point
-8°F
10 AM
0°F
10%
9mph
WNW
Sunny
Humidity
73%
Feels like
-15°F
Dew Point
-7°F
11 AM
3°F
10%
8mph
WNW
Sunny
Humidity
67%
Feels like
-10°F
Dew Point
-5°F
12 PM
7°F
10%
8mph
WNW
Sunny
Humidity
61%
Feels like
-6°F
Dew Point
-4°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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