S
M
T
W
T
F
S
29
42°
32°
30
45°
31°
1
45°
31°
2
43°
30°
3
41°
30°
4
44°
31°
5
44°
31°
6
45°
24°
7
35°
23°
8
43°
28°
9
44°
19°
10
31°
23°
11
35°
27°
12
36°
25°
13
34°
25°
14
38°
26°
15
38°
25°
16
40°
28°
17
42°
26°
18
42°
25°
19
36°
24°
20
38°
25°
21
31°
18°
22
33°
18°
23
30°
17°
24
29°
16°
25
28°
8°
26
39°
5°
27
31°
8°
28
22°
8°
29
23°
11°
30
24°
14°
31
41°
13°
1
40°
11°
2
25°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Coldbrook
Coldbrook's December 2026 forecast shows daily high temperatures ranging from 22° to 45°, with overnight lows between 5° and 32°. The average high for December is 36° with an average low of 21°. 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 Coldbrook. See also: January | February | March.