S
M
T
W
T
F
S
29
44°
32°
30
50°
30°
1
52°
26°
2
47°
23°
3
42°
21°
4
40°
26°
5
42°
31°
6
48°
31°
7
49°
33°
8
50°
30°
9
51°
28°
10
48°
25°
11
43°
26°
12
42°
29°
13
47°
27°
14
46°
26°
15
43°
27°
16
41°
28°
17
47°
27°
18
48°
25°
19
43°
27°
20
42°
18°
21
47°
11°
22
44°
14°
23
29°
18°
24
31°
13°
25
31°
16°
26
29°
21°
27
36°
14°
28
37°
14°
29
29°
22°
30
33°
25°
31
41°
24°
1
41°
24°
2
39°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in North Chelmsford
North Chelmsford's December 2026 forecast shows daily high temperatures ranging from 29° to 52°, with overnight lows between 11° and 33°. The average high for December is 42° with an average low of 24°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in North Chelmsford. See also: January | February | March.
