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