Hourly Weather Forecast - Chelmsford, MA

4 PM
42°F
70%
6mph
SSW
70% Chance of Light Rain
Humidity
74%
Feels like
38°F
Dew Point
35°F
4:12 PM
5 PM
42°F
70%
7mph
SSW
70% Chance of Light Rain
Humidity
79%
Feels like
38°F
Dew Point
36°F
6 PM
42°F
70%
7mph
SSW
70% Chance of Light Rain
Humidity
79%
Feels like
38°F
Dew Point
36°F
7 PM
42°F
70%
8mph
SSW
70% Chance of Light Rain
Humidity
82%
Feels like
37°F
Dew Point
37°F
8 PM
42°F
60%
8mph
SSW
60% Chance of Light Rain
Humidity
85%
Feels like
37°F
Dew Point
37°F
9 PM
41°F
50%
8mph
SW
50% Chance of Light Rain
Humidity
87%
Feels like
35°F
Dew Point
37°F
10 PM
40°F
30%
8mph
SW
30% Chance of Light Rain
Humidity
88%
Feels like
34°F
Dew Point
36°F
11 PM
39°F
30%
7mph
SW
30% Chance of Light Rain
Humidity
88%
Feels like
33°F
Dew Point
35°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Thursday's Weather Outlook

Thursday'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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Outdoor Sports Guide