Hourly Weather Forecast - Chelmsford, Ontario, CA

12 AM
19°F
10%
6mph
NW
Mostly Cloudy
Humidity
82%
Feels like
11°F
Dew Point
15°F
1 AM
18°F
0%
6mph
NW
Partly Cloudy
Humidity
82%
Feels like
10°F
Dew Point
13°F
2 AM
16°F
0%
5mph
NW
Partly Cloudy
Humidity
83%
Feels like
9°F
Dew Point
12°F
3 AM
15°F
0%
5mph
NNW
Partly Cloudy
Humidity
83%
Feels like
7°F
Dew Point
11°F
4 AM
13°F
0%
5mph
NNW
Mostly Clear
Humidity
83%
Feels like
6°F
Dew Point
9°F
5 AM
12°F
0%
4mph
NNW
Mostly Clear
Humidity
84%
Feels like
5°F
Dew Point
8°F
6 AM
10°F
0%
4mph
NNW
Mostly Clear
Humidity
85%
Feels like
3°F
Dew Point
6°F
7 AM
9°F
0%
3mph
NW
Mostly Clear
Humidity
85%
Feels like
9°F
Dew Point
5°F
8 AM
9°F
0%
3mph
NW
Mostly Clear
Humidity
84%
Feels like
9°F
Dew Point
5°F
8:07 AM
9 AM
10°F
0%
2mph
WNW
Mostly Sunny
Humidity
83%
Feels like
10°F
Dew Point
6°F
10 AM
11°F
10%
2mph
W
Partly Cloudy
Humidity
81%
Feels like
11°F
Dew Point
7°F
11 AM
14°F
10%
2mph
SW
Partly Cloudy
Humidity
78%
Feels like
14°F
Dew Point
8°F
12 PM
17°F
10%
4mph
SSW
Partly Cloudy
Humidity
76%
Feels like
10°F
Dew Point
10°F
1 PM
19°F
10%
5mph
S
Mostly Cloudy
Humidity
74%
Feels like
12°F
Dew Point
12°F
2 PM
20°F
0%
6mph
S
Cloudy
Humidity
74%
Feels like
13°F
Dew Point
13°F
3 PM
21°F
10%
6mph
S
Cloudy
Humidity
76%
Feels like
14°F
Dew Point
15°F
4 PM
22°F
10%
6mph
S
Cloudy
Humidity
78%
Feels like
15°F
Dew Point
16°F
4:41 PM
5 PM
22°F
10%
5mph
S
Cloudy
Humidity
81%
Feels like
15°F
Dew Point
17°F
6 PM
22°F
20%
5mph
S
Cloudy
Humidity
85%
Feels like
15°F
Dew Point
18°F
7 PM
22°F
10%
4mph
S
Cloudy
Humidity
88%
Feels like
16°F
Dew Point
19°F
8 PM
22°F
10%
4mph
S
Cloudy
Humidity
90%
Feels like
16°F
Dew Point
19°F
9 PM
23°F
10%
4mph
S
Cloudy
Humidity
91%
Feels like
18°F
Dew Point
20°F
10 PM
23°F
0%
4mph
S
Cloudy
Humidity
92%
Feels like
18°F
Dew Point
21°F
11 PM
24°F
10%
4mph
S
Cloudy
Humidity
93%
Feels like
19°F
Dew Point
22°F

Forecast Wind Gusts For Today

Storm Pummels Northeast U.S.

A strong disturbance will gradually exit the Northeast tonight while delivering rain and thunderstorms, snow and strong wind gusts.

Rain And Snow Totals Through Tonight

Atmospheric River Impacts Pacific Northwest

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide