Hourly Weather Forecast - Chelmsford, MA

4 PM
40°F
0%
7mph
SW
Mostly Sunny
Humidity
61%
Feels like
36°F
Dew Point
28°F
4:13 PM
5 PM
39°F
0%
6mph
SW
Clear
Humidity
64%
Feels like
35°F
Dew Point
28°F
6 PM
39°F
0%
6mph
SW
Clear
Humidity
67%
Feels like
34°F
Dew Point
29°F
7 PM
38°F
0%
6mph
WSW
Clear
Humidity
68%
Feels like
34°F
Dew Point
29°F
8 PM
38°F
0%
6mph
WSW
Clear
Humidity
69%
Feels like
33°F
Dew Point
29°F
9 PM
37°F
0%
6mph
W
Clear
Humidity
70%
Feels like
32°F
Dew Point
28°F
10 PM
37°F
0%
6mph
W
Clear
Humidity
71%
Feels like
32°F
Dew Point
28°F
11 PM
36°F
0%
5mph
WNW
Clear
Humidity
73%
Feels like
31°F
Dew Point
28°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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