S
M
T
W
T
F
S
30
77°
68°
31
84°
72°
1
88°
75°
2
92°
76°
3
88°
70°
4
81°
69°
5
76°
63°
6
77°
67°
7
77°
65°
8
74°
64°
9
75°
66°
10
78°
64°
11
75°
63°
12
74°
60°
13
72°
62°
14
73°
60°
15
78°
66°
16
78°
65°
17
77°
64°
18
74°
63°
19
78°
64°
20
79°
65°
21
79°
65°
22
78°
64°
23
79°
64°
24
78°
63°
25
78°
62°
26
76°
61°
27
77°
62°
28
77°
61°
29
76°
60°
30
74°
59°
1
74°
59°
2
73°
58°
3
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kelleys Island
Kelleys Island's September 2026 forecast shows daily high temperatures ranging from 72° to 92°, with overnight lows between 58° and 76°. The average high for September is 78° with an average low of 64°. 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 Kelleys Island. See also: October | November | December.
