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