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