Hourly Weather Forecast - Grimsby, Ontario, CA

12 AM
24°F
20%
14mph
W
Partly Cloudy
Humidity
68%
Feels like
12°F
Dew Point
15°F
1 AM
23°F
10%
13mph
W
Partly Cloudy
Humidity
69%
Feels like
12°F
Dew Point
15°F
2 AM
23°F
10%
12mph
W
Partly Cloudy
Humidity
70%
Feels like
12°F
Dew Point
15°F
3 AM
23°F
0%
11mph
W
Partly Cloudy
Humidity
71%
Feels like
12°F
Dew Point
15°F
4 AM
24°F
0%
9mph
WSW
Partly Cloudy
Humidity
71%
Feels like
14°F
Dew Point
16°F
5 AM
24°F
0%
9mph
WSW
Partly Cloudy
Humidity
71%
Feels like
15°F
Dew Point
16°F
6 AM
25°F
0%
8mph
SW
Partly Cloudy
Humidity
71%
Feels like
16°F
Dew Point
17°F
7 AM
25°F
10%
8mph
SW
Partly Cloudy
Humidity
71%
Feels like
17°F
Dew Point
17°F
7:46 AM
8 AM
26°F
10%
8mph
SW
Partly Cloudy
Humidity
71%
Feels like
18°F
Dew Point
18°F
9 AM
27°F
10%
8mph
SSW
Mostly Cloudy
Humidity
70%
Feels like
19°F
Dew Point
19°F
10 AM
29°F
10%
9mph
SSW
Cloudy
Humidity
70%
Feels like
21°F
Dew Point
20°F
11 AM
30°F
10%
10mph
SSW
Cloudy
Humidity
70%
Feels like
21°F
Dew Point
21°F
12 PM
31°F
10%
11mph
SSW
Cloudy
Humidity
69%
Feels like
22°F
Dew Point
22°F
1 PM
33°F
10%
13mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
23°F
Dew Point
23°F
2 PM
34°F
10%
13mph
SSW
Cloudy
Humidity
67%
Feels like
25°F
Dew Point
24°F
3 PM
35°F
10%
13mph
SSW
Cloudy
Humidity
66%
Feels like
26°F
Dew Point
24°F
4 PM
36°F
10%
12mph
SSW
Cloudy
Humidity
64%
Feels like
27°F
Dew Point
25°F
4:45 PM
5 PM
37°F
10%
13mph
SSW
Cloudy
Humidity
64%
Feels like
28°F
Dew Point
26°F
6 PM
37°F
10%
14mph
SSW
Cloudy
Humidity
63%
Feels like
29°F
Dew Point
26°F
7 PM
38°F
10%
15mph
SSW
Cloudy
Humidity
62%
Feels like
29°F
Dew Point
26°F
8 PM
38°F
20%
15mph
SW
Cloudy
Humidity
62%
Feels like
30°F
Dew Point
26°F
9 PM
38°F
20%
15mph
SW
Cloudy
Humidity
63%
Feels like
30°F
Dew Point
27°F
10 PM
37°F
20%
15mph
SW
Cloudy
Humidity
66%
Feels like
28°F
Dew Point
27°F
11 PM
36°F
30%
14mph
WSW
30% Chance Snow Showers
Humidity
69%
Feels like
27°F
Dew Point
27°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

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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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