Hourly Weather Forecast - Grimsby, Ontario, CA

6 AM
40°F
10%
19mph
SW
Mostly Cloudy
Humidity
81%
Feels like
30°F
Dew Point
34°F
7 AM
40°F
10%
19mph
SW
Mostly Cloudy
Humidity
81%
Feels like
31°F
Dew Point
35°F
7:44 AM
8 AM
40°F
10%
18mph
SW
Cloudy
Humidity
80%
Feels like
32°F
Dew Point
35°F
9 AM
41°F
0%
17mph
WSW
Mostly Cloudy
Humidity
80%
Feels like
32°F
Dew Point
35°F
10 AM
41°F
0%
17mph
WSW
Mostly Cloudy
Humidity
81%
Feels like
33°F
Dew Point
36°F
11 AM
41°F
0%
16mph
WSW
Mostly Cloudy
Humidity
81%
Feels like
33°F
Dew Point
36°F
12 PM
41°F
0%
15mph
WSW
Mostly Cloudy
Humidity
82%
Feels like
33°F
Dew Point
36°F
1 PM
40°F
0%
14mph
WSW
Mostly Cloudy
Humidity
83%
Feels like
32°F
Dew Point
35°F
2 PM
40°F
0%
13mph
W
Partly Cloudy
Humidity
83%
Feels like
32°F
Dew Point
35°F
3 PM
38°F
0%
12mph
W
Partly Cloudy
Humidity
83%
Feels like
31°F
Dew Point
34°F
4 PM
38°F
0%
11mph
W
Mostly Sunny
Humidity
82%
Feels like
30°F
Dew Point
33°F
4:44 PM
5 PM
36°F
0%
9mph
W
Mostly Clear
Humidity
83%
Feels like
30°F
Dew Point
32°F
6 PM
35°F
0%
7mph
W
Mostly Clear
Humidity
83%
Feels like
29°F
Dew Point
31°F
7 PM
34°F
0%
6mph
WSW
Mostly Clear
Humidity
83%
Feels like
29°F
Dew Point
30°F
8 PM
33°F
0%
4mph
SW
Mostly Clear
Humidity
85%
Feels like
29°F
Dew Point
29°F
9 PM
32°F
0%
3mph
SW
Partly Cloudy
Humidity
86%
Feels like
29°F
Dew Point
29°F
10 PM
31°F
0%
3mph
SSW
Partly Cloudy
Humidity
88%
Feels like
28°F
Dew Point
28°F
11 PM
31°F
0%
4mph
SSW
Partly Cloudy
Humidity
89%
Feels like
27°F
Dew Point
28°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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