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