S
M
T
W
T
F
S
29
43°
34°
30
44°
39°
1
46°
38°
2
45°
34°
3
40°
33°
4
38°
30°
5
38°
30°
6
37°
29°
7
36°
30°
8
37°
29°
9
36°
27°
10
35°
27°
11
36°
28°
12
36°
27°
13
34°
27°
14
36°
29°
15
36°
29°
16
40°
36°
17
41°
37°
18
44°
30°
19
41°
30°
20
36°
32°
21
44°
35°
22
43°
34°
23
42°
33°
24
40°
36°
25
44°
35°
26
44°
34°
27
43°
34°
28
41°
33°
29
41°
35°
30
44°
35°
31
42°
34°
1
43°
32°
2
41°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cappeln
Cappeln's December 2026 forecast shows daily high temperatures ranging from 34° to 46°, with overnight lows between 27° and 39°. The average high for December is 40° with an average low of 32°. 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 Cappeln. See also: January | February | March.
