Hourly Weather Forecast - Grimsby, Ontario, CA

11 AM
44°F
10%
13mph
S
Partly Cloudy
Humidity
71%
Feels like
38°F
Dew Point
36°F
12 PM
46°F
0%
13mph
S
Partly Cloudy
Humidity
68%
Feels like
40°F
Dew Point
37°F
1 PM
48°F
0%
14mph
S
Partly Cloudy
Humidity
67%
Feels like
42°F
Dew Point
37°F
2 PM
48°F
0%
14mph
S
Partly Cloudy
Humidity
66%
Feels like
43°F
Dew Point
37°F
3 PM
48°F
0%
14mph
S
Partly Cloudy
Humidity
66%
Feels like
42°F
Dew Point
37°F
4 PM
47°F
0%
14mph
S
Mostly Cloudy
Humidity
67%
Feels like
42°F
Dew Point
37°F
4:44 PM
5 PM
47°F
0%
14mph
S
Mostly Cloudy
Humidity
68%
Feels like
41°F
Dew Point
37°F
6 PM
47°F
0%
15mph
S
Partly Cloudy
Humidity
69%
Feels like
40°F
Dew Point
37°F
7 PM
46°F
10%
15mph
S
Mostly Cloudy
Humidity
71%
Feels like
40°F
Dew Point
37°F
8 PM
47°F
30%
16mph
S
30% Chance of Light Rain
Humidity
73%
Feels like
40°F
Dew Point
38°F
9 PM
47°F
50%
17mph
S
50% Chance of Light Rain
Humidity
74%
Feels like
40°F
Dew Point
39°F
10 PM
47°F
50%
18mph
S
50% Chance of Rain
Humidity
76%
Feels like
41°F
Dew Point
40°F
11 PM
48°F
50%
18mph
S
50% Chance of Rain
Humidity
78%
Feels like
41°F
Dew Point
42°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide