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