S
M
T
W
T
F
S
29
32°
8°
30
32°
10°
1
33°
6°
2
34°
1°
3
30°
6°
4
31°
7°
5
36°
10°
6
36°
5°
7
31°
10°
8
31°
-1°
9
29°
5°
10
27°
7°
11
32°
4°
12
33°
5°
13
33°
0°
14
31°
-3°
15
33°
-3°
16
32°
1°
17
30°
5°
18
32°
11°
19
34°
9°
20
36°
2°
21
33°
3°
22
28°
2°
23
25°
5°
24
30°
0°
25
29°
2°
26
32°
4°
27
28°
4°
28
34°
-6°
29
26°
-8°
30
Hist. Avg.
28°
1°
31
Hist. Avg.
28°
2°
1
Hist. Avg.
28°
2°
2
Hist. Avg.
28°
2°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Frontier
Frontier's December 2026 forecast shows daily high temperatures ranging from 25° to 36°, with overnight lows between -8° and 11°. The average high for December is 31° with an average low of 4°. 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 Frontier. See also: January | February | March.
