S
M
T
W
T
F
S
30
70°
53°
31
67°
52°
1
68°
50°
2
67°
53°
3
68°
53°
4
67°
52°
5
64°
50°
6
64°
50°
7
65°
54°
8
63°
55°
9
64°
49°
10
68°
54°
11
68°
55°
12
67°
54°
13
67°
52°
14
66°
49°
15
65°
52°
16
61°
49°
17
61°
54°
18
66°
52°
19
67°
48°
20
62°
52°
21
65°
54°
22
67°
52°
23
65°
49°
24
64°
48°
25
63°
50°
26
63°
47°
27
64°
48°
28
57°
50°
29
58°
51°
30
60°
49°
1
59°
51°
2
64°
50°
3
58°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Neumünster
Neumünster's September 2026 forecast shows daily high temperatures ranging from 57° to 70°, with overnight lows between 43° and 55°. The average high for September is 64° with an average low of 51°. 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 Neumünster. See also: October | November | December.
