S
M
T
W
T
F
S
29
51°
40°
30
54°
40°
1
52°
40°
2
53°
38°
3
50°
33°
4
45°
30°
5
51°
37°
6
52°
37°
7
42°
33°
8
38°
27°
9
38°
25°
10
39°
26°
11
36°
33°
12
38°
31°
13
39°
30°
14
36°
21°
15
35°
26°
16
37°
29°
17
39°
33°
18
38°
29°
19
43°
25°
20
38°
20°
21
36°
19°
22
33°
22°
23
32°
26°
24
35°
25°
25
36°
24°
26
34°
19°
27
33°
17°
28
32°
13°
29
31°
16°
30
31°
27°
31
38°
22°
1
40°
18°
2
31°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Larimer
Larimer's December 2026 forecast shows daily high temperatures ranging from 31° to 54°, with overnight lows between 13° and 40°. The average high for December is 40° with an average low of 27°. 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 Larimer. See also: January | February | March.
