Hourly Weather Forecast - Chelmsford, MA

5 AM
7°F
0%
1mph
WNW
Clear
Humidity
73%
Feels like
7°F
Dew Point
0°F
6 AM
7°F
0%
1mph
W
Clear
Humidity
74%
Feels like
7°F
Dew Point
0°F
7 AM
8°F
0%
1mph
W
Clear
Humidity
73%
Feels like
8°F
Dew Point
1°F
7:03 AM
8 AM
11°F
0%
1mph
W
Sunny
Humidity
67%
Feels like
11°F
Dew Point
2°F
9 AM
15°F
0%
0mph
W
Sunny
Humidity
60%
Feels like
15°F
Dew Point
4°F
10 AM
18°F
0%
0mph
W
Sunny
Humidity
53%
Feels like
18°F
Dew Point
4°F
11 AM
21°F
0%
0mph
WSW
Sunny
Humidity
46%
Feels like
21°F
Dew Point
4°F
12 PM
23°F
0%
1mph
SW
Sunny
Humidity
42%
Feels like
23°F
Dew Point
4°F
1 PM
25°F
0%
1mph
SW
Mostly Sunny
Humidity
40%
Feels like
25°F
Dew Point
4°F
2 PM
25°F
0%
1mph
SSW
Partly Cloudy
Humidity
40%
Feels like
25°F
Dew Point
4°F
3 PM
24°F
0%
1mph
S
Mostly Cloudy
Humidity
42%
Feels like
24°F
Dew Point
4°F
4 PM
23°F
0%
1mph
S
Mostly Cloudy
Humidity
45%
Feels like
23°F
Dew Point
5°F
4:11 PM
5 PM
22°F
0%
2mph
S
Mostly Cloudy
Humidity
48%
Feels like
22°F
Dew Point
5°F
6 PM
23°F
0%
3mph
S
Mostly Cloudy
Humidity
46%
Feels like
23°F
Dew Point
5°F
7 PM
25°F
10%
4mph
S
Mostly Cloudy
Humidity
45%
Feels like
20°F
Dew Point
7°F
8 PM
26°F
10%
4mph
S
Cloudy
Humidity
48%
Feels like
21°F
Dew Point
9°F
9 PM
26°F
10%
4mph
S
Cloudy
Humidity
57%
Feels like
22°F
Dew Point
13°F
10 PM
26°F
10%
3mph
S
Cloudy
Humidity
66%
Feels like
23°F
Dew Point
17°F
11 PM
27°F
30%
3mph
S
30% Chance of Snow
Humidity
71%
Feels like
27°F
Dew Point
19°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy, Flooding Rain Impacts the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Traffic Cameras

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Outdoor Sports Guide