S
M
T
W
T
F
S
30
81°
59°
31
80°
59°
1
82°
60°
2
84°
59°
3
81°
63°
4
85°
61°
5
84°
63°
6
82°
59°
7
80°
62°
8
83°
62°
9
80°
60°
10
78°
61°
11
83°
60°
12
83°
61°
13
82°
60°
14
82°
61°
15
83°
60°
16
82°
60°
17
82°
59°
18
81°
56°
19
80°
57°
20
79°
52°
21
76°
56°
22
75°
57°
23
80°
56°
24
80°
54°
25
79°
54°
26
80°
55°
27
78°
56°
28
78°
54°
29
77°
53°
30
78°
53°
1
76°
51°
2
78°
53°
3
72°
53°
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 85°, with overnight lows between 51° and 63°. The average high for September is 80° with an average low of 58°. 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.
