S
M
T
W
T
F
S
29
42°
34°
30
45°
37°
1
45°
36°
2
46°
36°
3
48°
35°
4
44°
37°
5
44°
38°
6
43°
38°
7
47°
37°
8
48°
37°
9
46°
39°
10
47°
37°
11
48°
35°
12
45°
33°
13
40°
31°
14
39°
30°
15
38°
30°
16
38°
31°
17
39°
30°
18
38°
30°
19
38°
31°
20
44°
37°
21
46°
39°
22
47°
40°
23
48°
39°
24
47°
36°
25
40°
36°
26
41°
37°
27
45°
37°
28
43°
36°
29
45°
37°
30
45°
36°
31
44°
36°
1
41°
35°
2
42°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Geldern
Geldern's December 2026 forecast shows daily high temperatures ranging from 38° to 48°, with overnight lows between 30° and 40°. The average high for December is 44° 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 Geldern. See also: January | February | March.