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