S
M
T
W
T
F
S
29
49°
33°
30
44°
36°
1
48°
33°
2
50°
32°
3
43°
31°
4
46°
31°
5
45°
32°
6
43°
32°
7
44°
31°
8
43°
30°
9
44°
31°
10
43°
30°
11
43°
30°
12
42°
31°
13
42°
30°
14
43°
32°
15
42°
34°
16
42°
36°
17
45°
35°
18
43°
37°
19
47°
36°
20
48°
37°
21
44°
33°
22
45°
32°
23
43°
36°
24
42°
31°
25
45°
30°
26
42°
29°
27
47°
36°
28
42°
31°
29
41°
31°
30
Hist. Avg.
44°
36°
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 50°, with overnight lows between 29° and 37°. 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.
