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