S
M
T
W
T
F
S
30
73°
46°
31
72°
48°
1
71°
49°
2
70°
45°
3
69°
50°
4
71°
54°
5
72°
50°
6
75°
44°
7
69°
45°
8
66°
44°
9
67°
48°
10
68°
50°
11
68°
46°
12
68°
42°
13
75°
51°
14
75°
45°
15
Hist. Avg.
71°
44°
16
Hist. Avg.
70°
43°
17
Hist. Avg.
70°
43°
18
Hist. Avg.
70°
42°
19
Hist. Avg.
69°
42°
20
Hist. Avg.
69°
42°
21
Hist. Avg.
68°
41°
22
Hist. Avg.
68°
41°
23
Hist. Avg.
68°
40°
24
Hist. Avg.
67°
40°
25
Hist. Avg.
67°
40°
26
Hist. Avg.
66°
39°
27
Hist. Avg.
66°
39°
28
Hist. Avg.
65°
38°
29
Hist. Avg.
65°
38°
30
Hist. Avg.
64°
37°
1
Hist. Avg.
64°
37°
2
Hist. Avg.
64°
37°
3
Hist. Avg.
63°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cooperstown
Cooperstown's September 2026 forecast shows daily high temperatures ranging from 66° to 75°, with overnight lows between 42° and 54°. The average high for September is 71° with an average low of 47°. 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.
