S
M
T
W
T
F
S
30
72°
63°
31
68°
61°
1
71°
57°
2
71°
55°
3
72°
62°
4
74°
62°
5
69°
48°
6
72°
60°
7
84°
61°
8
65°
53°
9
64°
51°
10
65°
53°
11
63°
53°
12
63°
52°
13
64°
53°
14
65°
54°
15
65°
55°
16
65°
55°
17
66°
53°
18
66°
49°
19
63°
52°
20
65°
55°
21
65°
55°
22
67°
56°
23
68°
55°
24
68°
55°
25
67°
52°
26
64°
48°
27
62°
47°
28
63°
47°
29
64°
48°
30
61°
53°
1
63°
50°
2
59°
48°
3
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mülheim
Mülheim's September 2026 forecast shows daily high temperatures ranging from 59° to 84°, with overnight lows between 47° and 61°. The average high for September is 65° with an average low of 52°. 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 Mülheim. See also: October | November | December.
