S
M
T
W
T
F
S
29
41°
22°
30
38°
21°
1
38°
22°
2
39°
31°
3
47°
28°
4
51°
23°
5
41°
24°
6
37°
24°
7
42°
26°
8
45°
28°
9
41°
21°
10
45°
28°
11
45°
31°
12
Hist. Avg.
36°
22°
13
Hist. Avg.
36°
22°
14
Hist. Avg.
35°
22°
15
Hist. Avg.
35°
22°
16
Hist. Avg.
35°
21°
17
Hist. Avg.
34°
21°
18
Hist. Avg.
34°
21°
19
Hist. Avg.
34°
20°
20
Hist. Avg.
34°
20°
21
Hist. Avg.
33°
20°
22
Hist. Avg.
33°
20°
23
Hist. Avg.
33°
19°
24
Hist. Avg.
33°
19°
25
Hist. Avg.
32°
19°
26
Hist. Avg.
32°
18°
27
Hist. Avg.
32°
18°
28
Hist. Avg.
32°
18°
29
Hist. Avg.
32°
18°
30
Hist. Avg.
31°
18°
31
Hist. Avg.
31°
17°
1
Hist. Avg.
31°
17°
2
Hist. Avg.
31°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Mountainhome
Mountainhome's December 2026 forecast shows daily high temperatures ranging from 37° to 51°, with overnight lows between 21° and 31°. The average high for December is 42° with an average low of 25°. 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 Mountainhome. See also: January | February | March.
