S
M
T
W
T
F
S
29
36°
21°
30
36°
28°
1
35°
18°
2
36°
18°
3
29°
27°
4
34°
27°
5
37°
28°
6
37°
28°
7
39°
25°
8
38°
24°
9
34°
20°
10
33°
21°
11
32°
20°
12
32°
12°
13
30°
10°
14
24°
17°
15
25°
21°
16
30°
17°
17
32°
21°
18
33°
24°
19
34°
24°
20
36°
19°
21
36°
17°
22
29°
20°
23
35°
21°
24
33°
12°
25
33°
8°
26
23°
5°
27
20°
2°
28
19°
6°
29
18°
-1°
30
18°
1°
31
13°
2°
1
17°
15°
2
20°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Willernie
Willernie's December 2026 forecast shows daily high temperatures ranging from 13° to 39°, with overnight lows between -1° and 28°. The average high for December is 30° with an average low of 17°. 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 Willernie. See also: January | February | March.
