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