S
M
T
W
T
F
S
29
62°
41°
30
66°
38°
1
57°
29°
2
54°
29°
3
57°
37°
4
65°
39°
5
57°
35°
6
55°
31°
7
55°
27°
8
51°
25°
9
52°
27°
10
54°
31°
11
55°
33°
12
58°
36°
13
56°
35°
14
61°
28°
15
56°
31°
16
56°
29°
17
57°
28°
18
55°
26°
19
54°
27°
20
55°
27°
21
60°
32°
22
58°
26°
23
54°
26°
24
55°
30°
25
58°
26°
26
54°
28°
27
58°
32°
28
64°
27°
29
58°
30°
30
55°
27°
31
62°
25°
1
53°
28°
2
57°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Alpine
Alpine's December 2026 forecast shows daily high temperatures ranging from 51° to 66°, with overnight lows between 25° and 41°. The average high for December is 57° with an average low of 30°. 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 Alpine. See also: January | February | March.
