S
M
T
W
T
F
S
29
46°
33°
30
45°
38°
1
46°
36°
2
46°
35°
3
44°
37°
4
45°
34°
5
44°
30°
6
44°
30°
7
43°
32°
8
43°
31°
9
44°
32°
10
43°
30°
11
44°
32°
12
44°
31°
13
45°
33°
14
43°
34°
15
45°
31°
16
46°
30°
17
43°
30°
18
43°
32°
19
44°
32°
20
43°
30°
21
43°
30°
22
44°
31°
23
44°
32°
24
43°
33°
25
42°
33°
26
43°
31°
27
44°
33°
28
41°
37°
29
46°
39°
30
49°
38°
31
Hist. Avg.
44°
36°
1
Hist. Avg.
44°
36°
2
Hist. Avg.
44°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Cambridge
Cambridge's December 2026 forecast shows daily high temperatures ranging from 41° to 49°, with overnight lows between 30° and 39°. The average high for December is 44° with an average low of 33°. 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 Cambridge. See also: January | February | March.
