S
M
T
W
T
F
S
26
91°
70°
27
90°
69°
28
91°
70°
29
91°
71°
30
90°
70°
31
87°
70°
1
86°
69°
2
85°
70°
3
86°
70°
4
87°
69°
5
87°
66°
6
86°
65°
7
86°
66°
8
87°
70°
9
85°
70°
10
86°
67°
11
86°
67°
12
87°
66°
13
86°
66°
14
86°
67°
15
87°
69°
16
89°
70°
17
91°
70°
18
91°
69°
19
90°
70°
20
90°
70°
21
89°
62°
22
85°
61°
23
85°
62°
24
86°
63°
25
89°
65°
26
91°
68°
27
91°
68°
28
90°
67°
29
91°
68°
30
91°
67°
31
90°
67°
1
90°
66°
2
89°
67°
3
91°
66°
4
91°
67°
5
90°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Cleveland
Cleveland's August 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 61° and 71°. The average high for August is 88° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Cleveland. See also: September | October | November.