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