Hourly Weather Forecast - Grimsby, Ontario, CA

12 AM
22°F
10%
10mph
WNW
Partly Cloudy
Humidity
75%
Feels like
12°F
Dew Point
16°F
1 AM
22°F
10%
9mph
WNW
Partly Cloudy
Humidity
75%
Feels like
12°F
Dew Point
15°F
2 AM
22°F
10%
9mph
WNW
Partly Cloudy
Humidity
76%
Feels like
12°F
Dew Point
15°F
3 AM
22°F
10%
9mph
W
Partly Cloudy
Humidity
77%
Feels like
12°F
Dew Point
16°F
4 AM
22°F
10%
9mph
W
Partly Cloudy
Humidity
78%
Feels like
12°F
Dew Point
16°F
5 AM
22°F
10%
9mph
W
Mostly Clear
Humidity
77%
Feels like
13°F
Dew Point
17°F
6 AM
23°F
10%
8mph
W
Mostly Clear
Humidity
77%
Feels like
14°F
Dew Point
17°F
7 AM
24°F
10%
8mph
W
Mostly Clear
Humidity
77%
Feels like
15°F
Dew Point
18°F
7:47 AM
8 AM
25°F
10%
8mph
W
Mostly Sunny
Humidity
75%
Feels like
17°F
Dew Point
19°F
9 AM
26°F
10%
8mph
W
Partly Cloudy
Humidity
73%
Feels like
18°F
Dew Point
19°F
10 AM
28°F
10%
8mph
W
Partly Cloudy
Humidity
70%
Feels like
19°F
Dew Point
19°F
11 AM
29°F
10%
8mph
W
Mostly Cloudy
Humidity
66%
Feels like
21°F
Dew Point
19°F
12 PM
30°F
10%
8mph
WSW
Cloudy
Humidity
62%
Feels like
23°F
Dew Point
19°F
1 PM
31°F
10%
8mph
WSW
Cloudy
Humidity
59%
Feels like
24°F
Dew Point
19°F
2 PM
32°F
10%
8mph
WSW
Cloudy
Humidity
58%
Feels like
25°F
Dew Point
19°F
3 PM
32°F
10%
7mph
WSW
Cloudy
Humidity
59%
Feels like
25°F
Dew Point
19°F
4 PM
31°F
10%
7mph
WSW
Cloudy
Humidity
62%
Feels like
24°F
Dew Point
19°F
4:46 PM
5 PM
30°F
10%
7mph
SW
Cloudy
Humidity
66%
Feels like
23°F
Dew Point
20°F
6 PM
29°F
10%
6mph
SW
Mostly Cloudy
Humidity
69%
Feels like
22°F
Dew Point
20°F
7 PM
28°F
10%
6mph
SW
Mostly Cloudy
Humidity
71%
Feels like
22°F
Dew Point
20°F
8 PM
28°F
10%
6mph
SSW
Mostly Cloudy
Humidity
73%
Feels like
21°F
Dew Point
20°F
9 PM
27°F
10%
6mph
SSW
Cloudy
Humidity
74%
Feels like
20°F
Dew Point
20°F
10 PM
26°F
10%
5mph
SSW
Cloudy
Humidity
74%
Feels like
20°F
Dew Point
19°F
11 PM
26°F
10%
5mph
S
Cloudy
Humidity
76%
Feels like
20°F
Dew Point
19°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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