Hourly Weather Forecast - Thunder Bay, Ontario, CA

12 AM
19°F
30%
7mph
SW
30% Chance of Flurries
Humidity
91%
Feels like
10°F
Dew Point
17°F
1 AM
19°F
40%
6mph
WSW
40% Chance of Flurries
Humidity
91%
Feels like
11°F
Dew Point
17°F
2 AM
20°F
50%
6mph
WSW
50% Chance of Flurries
Humidity
91%
Feels like
12°F
Dew Point
18°F
3 AM
21°F
60%
7mph
W
60% Chance of Flurries
Humidity
89%
Feels like
13°F
Dew Point
19°F
4 AM
22°F
60%
7mph
W
60% Chance of Heavy Snow
Humidity
85%
Feels like
13°F
Dew Point
18°F
5 AM
21°F
70%
7mph
WNW
70% Chance of Heavy Snow
Humidity
83%
Feels like
13°F
Dew Point
17°F
6 AM
20°F
70%
7mph
WNW
70% Chance of Heavy Snow
Humidity
82%
Feels like
12°F
Dew Point
16°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday'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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