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