Hourly Weather Forecast - Chelmsford, MA

12 AM
23°F
10%
1mph
NW
Clear
Humidity
71%
Feels like
23°F
Dew Point
15°F
1 AM
22°F
10%
1mph
NW
Clear
Humidity
74%
Feels like
22°F
Dew Point
15°F
2 AM
22°F
10%
1mph
WNW
Clear
Humidity
75%
Feels like
22°F
Dew Point
15°F

Rain And Snow Totals Through Tonight

Atmospheric River Impacts Northwest into Northern California

A plume of consistent moisture will pummel the Pacific Northwest and Northern California today and later this weekend bringing heavier rain and mountain snow to these regions.

Forecast Wind Gusts For Today

Storm Pummels Eastern U.S.

NOAA, NCDC

White Christmas? What Are The Odds

Today's Weather Outlook

Today's Weather Outlook

Friday's Weather Outlook

Weekend Weather Preview

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide