S
M
T
W
T
F
S
30
66°
59°
31
65°
58°
1
67°
52°
2
65°
52°
3
64°
54°
4
65°
51°
5
67°
51°
6
66°
57°
7
70°
57°
8
64°
56°
9
68°
56°
10
70°
55°
11
69°
56°
12
69°
55°
13
68°
56°
14
70°
55°
15
69°
53°
16
67°
47°
17
60°
50°
18
58°
55°
19
67°
54°
20
66°
53°
21
67°
47°
22
66°
44°
23
64°
50°
24
64°
50°
25
Hist. Avg.
68°
48°
26
Hist. Avg.
68°
47°
27
Hist. Avg.
67°
47°
28
Hist. Avg.
67°
46°
29
Hist. Avg.
66°
46°
30
Hist. Avg.
66°
46°
1
Hist. Avg.
65°
46°
2
Hist. Avg.
65°
45°
3
Hist. Avg.
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Otsego
Otsego's September 2026 forecast shows daily high temperatures ranging from 58° to 70°, with overnight lows between 44° and 59°. The average high for September is 66° with an average low of 53°. 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 Otsego. See also: October | November | December.
