Hourly Weather Forecast - Chelmsford, MA

12 AM
28°F
0%
9mph
WNW
Clear
Humidity
53%
Feels like
20°F
Dew Point
14°F
1 AM
28°F
0%
9mph
WNW
Mostly Clear
Humidity
52%
Feels like
19°F
Dew Point
12°F
2 AM
26°F
0%
9mph
WNW
Partly Cloudy
Humidity
49%
Feels like
18°F
Dew Point
10°F
3 AM
25°F
0%
8mph
WNW
Partly Cloudy
Humidity
47%
Feels like
17°F
Dew Point
8°F
4 AM
24°F
0%
7mph
WNW
Partly Cloudy
Humidity
46%
Feels like
16°F
Dew Point
6°F
5 AM
23°F
0%
6mph
WNW
Partly Cloudy
Humidity
46%
Feels like
15°F
Dew Point
5°F
6 AM
22°F
0%
6mph
WNW
Mostly Clear
Humidity
46%
Feels like
14°F
Dew Point
4°F
7 AM
22°F
0%
5mph
WNW
Clear
Humidity
44%
Feels like
15°F
Dew Point
4°F
7:11 AM
8 AM
23°F
0%
6mph
WNW
Sunny
Humidity
41%
Feels like
16°F
Dew Point
3°F
9 AM
25°F
0%
6mph
WNW
Sunny
Humidity
37%
Feels like
18°F
Dew Point
2°F
10 AM
26°F
10%
6mph
WNW
Sunny
Humidity
34%
Feels like
20°F
Dew Point
2°F
11 AM
28°F
10%
6mph
WNW
Sunny
Humidity
33%
Feels like
22°F
Dew Point
3°F
12 PM
29°F
20%
5mph
W
Sunny
Humidity
33%
Feels like
23°F
Dew Point
4°F
1 PM
30°F
20%
4mph
W
Sunny
Humidity
35%
Feels like
25°F
Dew Point
6°F
2 PM
30°F
20%
4mph
WSW
Sunny
Humidity
37%
Feels like
27°F
Dew Point
7°F
3 PM
30°F
20%
3mph
WSW
Sunny
Humidity
41%
Feels like
30°F
Dew Point
9°F
4 PM
29°F
20%
3mph
SW
Sunny
Humidity
45%
Feels like
29°F
Dew Point
11°F
4:14 PM
5 PM
29°F
20%
3mph
SSW
Mostly Clear
Humidity
48%
Feels like
26°F
Dew Point
12°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

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

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide