S
M
T
W
T
F
S
30
75°
57°
31
72°
63°
1
71°
64°
2
72°
64°
3
81°
63°
4
77°
59°
5
74°
57°
6
73°
52°
7
76°
47°
8
77°
50°
9
72°
62°
10
75°
52°
11
69°
45°
12
74°
62°
13
76°
55°
14
68°
45°
15
67°
60°
16
66°
58°
17
67°
59°
18
64°
50°
19
61°
47°
20
57°
49°
21
59°
49°
22
58°
50°
23
60°
48°
24
61°
52°
25
54°
42°
26
55°
46°
27
61°
51°
28
61°
46°
29
55°
41°
30
56°
51°
1
60°
48°
2
54°
46°
3
59°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cooperstown
Cooperstown's September 2026 forecast shows daily high temperatures ranging from 54° to 76°, with overnight lows between 41° and 62°. The average high for September is 62° with an average low of 50°. 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 Cooperstown. See also: October | November | December.
