S
M
T
W
T
F
S
30
84°
65°
31
86°
69°
1
89°
69°
2
93°
72°
3
92°
68°
4
84°
67°
5
77°
65°
6
78°
55°
7
80°
53°
8
84°
70°
9
77°
64°
10
75°
49°
11
78°
59°
12
82°
60°
13
77°
57°
14
77°
60°
15
72°
52°
16
73°
50°
17
68°
48°
18
66°
46°
19
66°
47°
20
68°
46°
21
67°
48°
22
66°
53°
23
67°
52°
24
73°
53°
25
75°
53°
26
74°
52°
27
73°
53°
28
75°
54°
29
75°
54°
30
74°
53°
1
74°
50°
2
72°
45°
3
60°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Otsego
Otsego's September 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 42° and 70°. The average high for September is 73° 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.
