S
M
T
W
T
F
S
29
34°
8°
30
35°
5°
1
29°
-1°
2
26°
0°
3
25°
5°
4
30°
2°
5
33°
5°
6
32°
3°
7
30°
-4°
8
28°
-5°
9
29°
3°
10
29°
0°
11
32°
8°
12
33°
9°
13
36°
8°
14
36°
8°
15
35°
9°
16
34°
10°
17
36°
7°
18
36°
7°
19
35°
8°
20
36°
9°
21
36°
2°
22
35°
0°
23
33°
8°
24
34°
10°
25
36°
9°
26
35°
8°
27
35°
8°
28
36°
4°
29
34°
1°
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 -5° and 10°. The average high for December is 33° with an average low of 5°. 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.
