Hourly Weather Forecast - Chelmsford, MA

4:14 PM
5 PM
34°F
0%
1mph
SSW
Partly Cloudy
Humidity
54%
Feels like
34°F
Dew Point
19°F
6 PM
33°F
0%
2mph
SSW
Partly Cloudy
Humidity
58%
Feels like
33°F
Dew Point
20°F
7 PM
33°F
0%
2mph
S
Mostly Cloudy
Humidity
61%
Feels like
33°F
Dew Point
20°F
8 PM
32°F
0%
4mph
S
Mostly Cloudy
Humidity
63%
Feels like
29°F
Dew Point
21°F
9 PM
32°F
0%
5mph
S
Mostly Cloudy
Humidity
65%
Feels like
28°F
Dew Point
22°F
10 PM
33°F
0%
6mph
S
Partly Cloudy
Humidity
67%
Feels like
27°F
Dew Point
23°F
11 PM
33°F
0%
7mph
SSW
Cloudy
Humidity
69%
Feels like
27°F
Dew Point
24°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

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

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