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