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