S
M
T
W
T
F
S
29
39°
31°
30
39°
30°
1
40°
35°
2
45°
38°
3
46°
35°
4
40°
31°
5
38°
31°
6
38°
32°
7
44°
36°
8
46°
38°
9
47°
40°
10
47°
34°
11
45°
35°
12
44°
36°
13
42°
35°
14
43°
34°
15
40°
36°
16
43°
36°
17
43°
34°
18
42°
35°
19
39°
35°
20
39°
36°
21
41°
37°
22
45°
36°
23
42°
34°
24
43°
36°
25
41°
36°
26
42°
35°
27
43°
34°
28
42°
35°
29
41°
36°
30
43°
36°
31
42°
35°
1
44°
35°
2
44°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Arnsberg
Arnsberg's December 2026 forecast shows daily high temperatures ranging from 38° to 47°, with overnight lows between 30° and 40°. The average high for December is 42° with an average low of 35°. 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 Arnsberg. See also: January | February | March.
