Hourly Weather Forecast - Casselman, Ontario, CA

7 PM
31°F
0%
9mph
WNW
Mostly Clear
Humidity
72%
Feels like
22°F
Dew Point
23°F
8 PM
27°F
0%
8mph
WNW
Mostly Clear
Humidity
68%
Feels like
19°F
Dew Point
18°F
9 PM
24°F
0%
6mph
WNW
Mostly Clear
Humidity
64%
Feels like
16°F
Dew Point
13°F
10 PM
20°F
0%
5mph
W
Mostly Clear
Humidity
60%
Feels like
13°F
Dew Point
9°F
11 PM
18°F
0%
4mph
WSW
Clear
Humidity
74%
Feels like
12°F
Dew Point
11°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

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

Thursday's Weather Outlook

Thursday'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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide