S
M
T
W
T
F
S
29
28°
18°
30
28°
18°
1
27°
17°
2
26°
20°
3
27°
20°
4
26°
22°
5
28°
20°
6
27°
8°
7
28°
7°
8
22°
4°
9
21°
6°
10
24°
17°
11
25°
18°
12
24°
7°
13
26°
3°
14
27°
7°
15
30°
13°
16
Hist. Avg.
35°
25°
17
Hist. Avg.
35°
25°
18
Hist. Avg.
35°
25°
19
Hist. Avg.
34°
24°
20
Hist. Avg.
34°
24°
21
Hist. Avg.
34°
24°
22
Hist. Avg.
34°
24°
23
Hist. Avg.
34°
24°
24
Hist. Avg.
34°
24°
25
Hist. Avg.
34°
24°
26
Hist. Avg.
33°
23°
27
Hist. Avg.
33°
23°
28
Hist. Avg.
33°
23°
29
Hist. Avg.
33°
23°
30
Hist. Avg.
33°
23°
31
Hist. Avg.
33°
23°
1
Hist. Avg.
33°
23°
2
Hist. Avg.
33°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Mount Baldy
Mount Baldy's December 2026 forecast shows daily high temperatures ranging from 21° to 30°, with overnight lows between 3° and 22°. The average high for December is 26° with an average low of 13°. 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.