Hourly Weather Forecast - Chelmsford, MA

12 AM
34°F
0%
4mph
W
Clear
Humidity
75%
Feels like
31°F
Dew Point
27°F
1 AM
33°F
0%
3mph
W
Clear
Humidity
77%
Feels like
30°F
Dew Point
27°F
2 AM
32°F
0%
3mph
W
Clear
Humidity
77%
Feels like
32°F
Dew Point
25°F
3 AM
30°F
0%
2mph
W
Clear
Humidity
78%
Feels like
30°F
Dew Point
24°F
4 AM
28°F
0%
1mph
W
Clear
Humidity
81%
Feels like
28°F
Dew Point
23°F
5 AM
26°F
0%
1mph
W
Clear
Humidity
84%
Feels like
26°F
Dew Point
22°F
6 AM
25°F
0%
1mph
WSW
Clear
Humidity
87%
Feels like
25°F
Dew Point
22°F
7 AM
26°F
0%
0mph
SW
Clear
Humidity
84%
Feels like
26°F
Dew Point
22°F
7:10 AM
8 AM
29°F
0%
0mph
SW
Sunny
Humidity
77%
Feels like
29°F
Dew Point
22°F
9 AM
33°F
0%
0mph
SSW
Sunny
Humidity
68%
Feels like
33°F
Dew Point
23°F
10 AM
36°F
0%
1mph
S
Sunny
Humidity
62%
Feels like
36°F
Dew Point
24°F
11 AM
38°F
0%
2mph
S
Sunny
Humidity
58%
Feels like
38°F
Dew Point
25°F
12 PM
40°F
0%
2mph
S
Mostly Sunny
Humidity
56%
Feels like
40°F
Dew Point
26°F
1 PM
41°F
0%
3mph
S
Partly Cloudy
Humidity
56%
Feels like
39°F
Dew Point
27°F
2 PM
41°F
0%
3mph
S
Mostly Sunny
Humidity
60%
Feels like
39°F
Dew Point
28°F
3 PM
40°F
0%
3mph
S
Partly Cloudy
Humidity
65%
Feels like
38°F
Dew Point
29°F
4 PM
39°F
0%
4mph
S
Partly Cloudy
Humidity
72%
Feels like
36°F
Dew Point
31°F
4:13 PM
5 PM
38°F
0%
4mph
S
Mostly Cloudy
Humidity
78%
Feels like
35°F
Dew Point
32°F
6 PM
38°F
10%
6mph
S
Mostly Cloudy
Humidity
84%
Feels like
34°F
Dew Point
34°F
7 PM
39°F
10%
6mph
S
Mostly Cloudy
Humidity
87%
Feels like
34°F
Dew Point
35°F
8 PM
39°F
10%
6mph
S
Mostly Cloudy
Humidity
89%
Feels like
35°F
Dew Point
36°F
9 PM
40°F
10%
7mph
S
Mostly Cloudy
Humidity
90%
Feels like
36°F
Dew Point
38°F
10 PM
42°F
20%
7mph
S
Mostly Cloudy
Humidity
92%
Feels like
37°F
Dew Point
39°F
11 PM
43°F
30%
8mph
S
30% Chance Rain Showers
Humidity
93%
Feels like
38°F
Dew Point
41°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

Sunday Weather Outlook

Today'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