S
M
T
W
T
F
S
29
45°
32°
30
48°
33°
1
47°
34°
2
46°
32°
3
47°
29°
4
43°
25°
5
46°
30°
6
46°
30°
7
42°
27°
8
36°
25°
9
35°
25°
10
34°
23°
11
34°
29°
12
37°
27°
13
36°
26°
14
33°
20°
15
36°
21°
16
34°
22°
17
37°
25°
18
36°
26°
19
40°
24°
20
37°
15°
21
35°
18°
22
33°
20°
23
30°
20°
24
33°
19°
25
31°
18°
26
31°
14°
27
29°
10°
28
26°
8°
29
27°
5°
30
27°
17°
31
32°
19°
1
40°
13°
2
31°
13°
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 26° to 48°, with overnight lows between 5° and 34°. The average high for December is 37° with an average low of 22°. 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.
