S
M
T
W
T
F
S
30
79°
48°
31
80°
52°
1
80°
52°
2
81°
46°
3
80°
44°
4
78°
44°
5
78°
45°
6
79°
46°
7
81°
48°
8
79°
45°
9
78°
47°
10
77°
45°
11
79°
44°
12
79°
48°
13
81°
45°
14
80°
39°
15
76°
40°
16
76°
44°
17
77°
44°
18
75°
41°
19
74°
39°
20
73°
38°
21
74°
37°
22
74°
41°
23
79°
43°
24
78°
41°
25
80°
42°
26
79°
42°
27
78°
37°
28
78°
33°
29
69°
34°
30
69°
43°
1
74°
42°
2
77°
44°
3
78°
33°
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 69° to 81°, with overnight lows between 33° and 52°. The average high for September is 77° with an average low of 43°. 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.
