S
M
T
W
T
F
S
26
87°
71°
27
86°
63°
28
86°
65°
29
87°
69°
30
92°
66°
31
88°
65°
1
87°
69°
2
88°
65°
3
87°
64°
4
86°
63°
5
85°
64°
6
86°
64°
7
86°
65°
8
87°
68°
9
86°
67°
10
85°
65°
11
87°
68°
12
93°
72°
13
94°
65°
14
90°
64°
15
88°
64°
16
87°
70°
17
91°
66°
18
92°
63°
19
85°
61°
20
83°
62°
21
84°
63°
22
86°
60°
23
82°
62°
24
84°
66°
25
86°
68°
26
83°
70°
27
89°
70°
28
91°
67°
29
91°
60°
30
87°
60°
31
82°
64°
1
86°
66°
2
81°
59°
3
81°
62°
4
80°
67°
5
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ohio
Ohio's August 2026 forecast shows daily high temperatures ranging from 80° to 94°, with overnight lows between 59° and 72°. The average high for August is 87° 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 August weather will actually feel in Ohio. See also: September | October | November.