S
M
T
W
T
F
S
29
46°
34°
30
52°
37°
1
48°
36°
2
44°
36°
3
47°
35°
4
50°
30°
5
42°
28°
6
41°
32°
7
39°
34°
8
40°
33°
9
39°
34°
10
47°
35°
11
47°
33°
12
40°
31°
13
38°
26°
14
33°
25°
15
33°
29°
16
36°
32°
17
41°
33°
18
46°
33°
19
44°
32°
20
40°
28°
21
34°
24°
22
33°
29°
23
42°
31°
24
43°
30°
25
32°
18°
26
32°
20°
27
33°
26°
28
34°
22°
29
33°
22°
30
32°
21°
31
32°
16°
1
33°
14°
2
29°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Geist
Geist's December 2026 forecast shows daily high temperatures ranging from 29° to 52°, with overnight lows between 12° and 37°. The average high for December is 39° with an average low of 28°. 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 Geist. See also: January | February | March.
