S
M
T
W
T
F
S
30
73°
58°
31
74°
56°
1
73°
56°
2
71°
57°
3
74°
56°
4
73°
55°
5
74°
57°
6
73°
58°
7
71°
56°
8
73°
58°
9
73°
53°
10
70°
53°
11
74°
54°
12
74°
58°
13
73°
57°
14
69°
57°
15
74°
60°
16
76°
61°
17
75°
60°
18
76°
50°
19
73°
49°
20
69°
49°
21
65°
55°
22
66°
56°
23
71°
56°
24
65°
55°
25
66°
47°
26
68°
45°
27
62°
46°
28
61°
47°
29
62°
47°
30
62°
49°
1
60°
44°
2
60°
41°
3
Hist. Avg.
65°
48°
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 60° to 76°, with overnight lows between 41° and 61°. The average high for September is 70° with an average low of 53°. 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.