S
M
T
W
T
F
S
30
73°
64°
31
70°
61°
1
72°
57°
2
72°
57°
3
73°
64°
4
75°
63°
5
70°
52°
6
77°
50°
7
88°
59°
8
77°
57°
9
64°
55°
10
68°
52°
11
68°
54°
12
70°
52°
13
68°
61°
14
75°
63°
15
84°
59°
16
68°
55°
17
66°
54°
18
66°
57°
19
73°
61°
20
66°
52°
21
66°
52°
22
64°
48°
23
70°
45°
24
64°
50°
25
73°
45°
26
70°
50°
27
79°
50°
28
73°
59°
29
81°
59°
30
81°
61°
1
68°
57°
2
66°
50°
3
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stolberg
Stolberg's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September 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 September weather will actually feel in Stolberg. See also: October | November | December.