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