S
M
T
W
T
F
S
30
70°
53°
31
71°
57°
1
72°
56°
2
70°
56°
3
70°
52°
4
64°
52°
5
63°
51°
6
64°
50°
7
70°
48°
8
69°
50°
9
69°
49°
10
68°
48°
11
68°
52°
12
67°
53°
13
64°
53°
14
66°
52°
15
63°
54°
16
63°
52°
17
66°
48°
18
67°
48°
19
66°
52°
20
63°
46°
21
65°
44°
22
62°
45°
23
60°
44°
24
61°
43°
25
60°
43°
26
62°
44°
27
62°
47°
28
61°
49°
29
61°
49°
30
60°
50°
1
57°
48°
2
62°
43°
3
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ottenstein
Ottenstein's September 2026 forecast shows daily high temperatures ranging from 57° to 72°, with overnight lows between 43° and 57°. The average high for September is 65° with an average low of 49°. 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 Ottenstein. See also: October | November | December.