S
M
T
W
T
F
S
30
92°
70°
31
88°
69°
1
89°
65°
2
88°
64°
3
87°
64°
4
86°
63°
5
87°
64°
6
88°
66°
7
90°
68°
8
90°
68°
9
87°
67°
10
91°
68°
11
90°
68°
12
90°
67°
13
91°
68°
14
91°
67°
15
90°
66°
16
90°
65°
17
91°
66°
18
89°
65°
19
87°
64°
20
87°
65°
21
88°
59°
22
85°
58°
23
81°
59°
24
Hist. Avg.
84°
61°
25
Hist. Avg.
84°
61°
26
Hist. Avg.
84°
60°
27
Hist. Avg.
83°
60°
28
Hist. Avg.
83°
60°
29
Hist. Avg.
82°
59°
30
Hist. Avg.
82°
59°
1
Hist. Avg.
82°
58°
2
Hist. Avg.
81°
58°
3
Hist. Avg.
81°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cleveland
Cleveland's September 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 58° and 70°. The average high for September is 89° with an average low of 65°. 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.
