S
M
T
W
T
F
S
30
75°
69°
31
76°
70°
1
74°
69°
2
78°
66°
3
73°
62°
4
73°
64°
5
74°
66°
6
74°
68°
7
78°
68°
8
80°
65°
9
72°
63°
10
73°
67°
11
70°
55°
12
69°
59°
13
68°
58°
14
70°
57°
15
69°
56°
16
68°
54°
17
68°
55°
18
69°
53°
19
68°
52°
20
66°
51°
21
67°
52°
22
67°
53°
23
70°
57°
24
72°
61°
25
76°
62°
26
76°
61°
27
70°
59°
28
74°
60°
29
68°
51°
30
66°
57°
1
64°
60°
2
73°
48°
3
75°
47°
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 80°, with overnight lows between 47° and 70°. The average high for September is 72° with an average low of 59°. 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.
