S
M
T
W
T
F
S
30
96°
73°
31
99°
72°
1
88°
73°
2
83°
73°
3
85°
73°
4
90°
72°
5
92°
71°
6
93°
71°
7
94°
73°
8
93°
72°
9
92°
71°
10
92°
73°
11
92°
72°
12
90°
72°
13
89°
70°
14
87°
67°
15
85°
70°
16
88°
69°
17
89°
70°
18
88°
69°
19
86°
69°
20
86°
68°
21
81°
69°
22
81°
68°
23
82°
68°
24
82°
67°
25
83°
68°
26
84°
66°
27
87°
67°
28
87°
62°
29
86°
64°
30
87°
65°
1
87°
66°
2
82°
66°
3
83°
65°
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 81° to 94°, with overnight lows between 62° and 73°. The average high for September is 87° with an average low of 69°. 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.
