S
M
T
W
T
F
S
29
44°
23°
30
45°
24°
1
46°
25°
2
45°
29°
3
44°
33°
4
46°
35°
5
45°
36°
6
45°
35°
7
48°
33°
8
44°
32°
9
43°
27°
10
43°
24°
11
56°
40°
12
60°
27°
13
61°
24°
14
46°
23°
15
44°
24°
16
46°
22°
17
43°
26°
18
51°
36°
19
50°
38°
20
57°
38°
21
59°
35°
22
58°
36°
23
57°
37°
24
60°
30°
25
61°
25°
26
61°
22°
27
44°
27°
28
51°
34°
29
55°
35°
30
57°
38°
31
59°
39°
1
58°
36°
2
59°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Black Mountain
Black Mountain's December 2026 forecast shows daily high temperatures ranging from 43° to 61°, with overnight lows between 22° and 40°. The average high for December is 51° with an average low of 31°. 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 Black Mountain. See also: January | February | March.
