S
M
T
W
T
F
S
29
40°
17°
30
37°
13°
1
29°
18°
2
32°
20°
3
37°
21°
4
37°
21°
5
36°
20°
6
37°
20°
7
37°
18°
8
34°
18°
9
35°
13°
10
34°
11°
11
30°
8°
12
26°
11°
13
27°
7°
14
25°
8°
15
23°
7°
16
22°
2°
17
21°
4°
18
19°
11°
19
26°
14°
20
30°
15°
21
32°
13°
22
32°
4°
23
31°
3°
24
22°
4°
25
19°
2°
26
19°
9°
27
23°
5°
28
29°
1°
29
25°
2°
30
18°
6°
31
22°
10°
1
24°
5°
2
28°
7°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Crystal Falls
Crystal Falls's December 2026 forecast shows daily high temperatures ranging from 18° to 40°, with overnight lows between 1° and 21°. The average high for December is 29° 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 Crystal Falls. See also: January | February | March.
