S
M
T
W
T
F
S
30
77°
71°
31
84°
72°
1
88°
76°
2
92°
77°
3
85°
69°
4
78°
69°
5
76°
68°
6
75°
62°
7
76°
61°
8
83°
63°
9
89°
66°
10
77°
69°
11
75°
66°
12
76°
66°
13
79°
65°
14
68°
60°
15
83°
59°
16
78°
71°
17
75°
66°
18
74°
61°
19
74°
67°
20
71°
59°
21
70°
62°
22
72°
64°
23
74°
63°
24
72°
60°
25
70°
58°
26
73°
61°
27
74°
62°
28
74°
59°
29
71°
49°
30
70°
61°
1
73°
62°
2
66°
60°
3
64°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cleveland
Cleveland's September 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 49° and 71°. The average high for September is 72° with an average low of 61°. 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 Cleveland. See also: October | November | December.
