S
M
T
W
T
F
S
29
46°
35°
30
48°
35°
1
47°
33°
2
47°
32°
3
41°
32°
4
45°
32°
5
45°
31°
6
42°
31°
7
36°
27°
8
33°
22°
9
32°
23°
10
35°
26°
11
38°
30°
12
39°
28°
13
38°
28°
14
32°
20°
15
33°
23°
16
35°
27°
17
38°
26°
18
36°
23°
19
35°
18°
20
32°
16°
21
28°
14°
22
28°
21°
23
32°
24°
24
32°
23°
25
33°
13°
26
31°
9°
27
27°
9°
28
26°
10°
29
26°
11°
30
27°
20°
31
29°
15°
1
31°
10°
2
27°
7°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cromwell
Cromwell's December 2026 forecast shows daily high temperatures ranging from 26° to 48°, with overnight lows between 7° and 35°. The average high for December is 35° with an average low of 22°. 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 Cromwell. See also: January | February | March.
