S
M
T
W
T
F
S
30
81°
66°
31
84°
55°
1
80°
52°
2
82°
57°
3
84°
63°
4
86°
55°
5
84°
68°
6
82°
68°
7
77°
64°
8
81°
59°
9
73°
52°
10
84°
48°
11
77°
52°
12
66°
48°
13
66°
43°
14
66°
50°
15
68°
45°
16
66°
41°
17
70°
45°
18
64°
55°
19
66°
57°
20
68°
48°
21
64°
46°
22
66°
43°
23
63°
50°
24
68°
57°
25
63°
59°
26
66°
59°
27
73°
46°
28
63°
50°
29
73°
57°
30
79°
50°
1
61°
43°
2
61°
34°
3
70°
45°
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 ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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.
