S
M
T
W
T
F
S
30
86°
64°
31
86°
63°
1
83°
62°
2
83°
61°
3
85°
60°
4
86°
63°
5
87°
65°
6
86°
62°
7
82°
57°
8
79°
57°
9
80°
58°
10
82°
56°
11
83°
56°
12
82°
57°
13
83°
58°
14
84°
60°
15
83°
61°
16
83°
59°
17
78°
54°
18
77°
53°
19
75°
54°
20
75°
58°
21
76°
52°
22
75°
55°
23
75°
57°
24
74°
58°
25
76°
58°
26
80°
57°
27
79°
57°
28
79°
56°
29
78°
55°
30
74°
56°
1
73°
54°
2
74°
49°
3
72°
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 72° to 87°, with overnight lows between 47° and 65°. The average high for September is 80° with an average low of 57°. 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.
