S
M
T
W
T
F
S
28
41°
23°
29
38°
20°
30
38°
27°
31
38°
29°
1
39°
36°
2
38°
32°
3
35°
32°
4
34°
28°
5
33°
28°
6
33°
29°
7
34°
29°
8
38°
34°
9
46°
33°
10
32°
25°
11
32°
19°
12
50°
35°
13
53°
48°
14
51°
45°
15
52°
50°
16
53°
44°
17
53°
39°
18
40°
33°
19
40°
28°
20
43°
30°
21
46°
34°
22
43°
29°
23
45°
38°
24
45°
34°
25
35°
28°
26
31°
26°
27
43°
32°
28
42°
33°
29
34°
32°
30
41°
30°
31
47°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Aachen
Aachen's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Aachen. See also: February | March | April.
