S
M
T
W
T
F
S
29
35°
17°
30
41°
17°
1
40°
16°
2
40°
13°
3
39°
16°
4
40°
21°
5
38°
20°
6
36°
15°
7
31°
9°
8
30°
13°
9
31°
12°
10
33°
11°
11
34°
8°
12
31°
7°
13
30°
18°
14
30°
14°
15
33°
14°
16
30°
18°
17
37°
15°
18
33°
18°
19
35°
7°
20
30°
11°
21
29°
5°
22
29°
5°
23
30°
16°
24
31°
9°
25
28°
6°
26
28°
2°
27
25°
3°
28
30°
4°
29
31°
7°
30
29°
6°
31
30°
9°
1
32°
11°
2
Hist. Avg.
31°
9°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Basalt
Basalt's December 2026 forecast shows daily high temperatures ranging from 25° to 41°, with overnight lows between 2° and 21°. The average high for December is 33° with an average low of 12°. 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 Basalt. See also: January | February | March.
