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