S
M
T
W
T
F
S
26
72°
42°
27
72°
43°
28
68°
40°
29
67°
41°
30
66°
40°
31
67°
39°
1
67°
41°
2
68°
41°
3
68°
39°
4
69°
42°
5
71°
43°
6
72°
44°
7
73°
40°
8
69°
40°
9
69°
41°
10
70°
45°
11
71°
45°
12
65°
42°
13
65°
44°
14
68°
42°
15
70°
40°
16
69°
41°
17
68°
42°
18
66°
44°
19
66°
44°
20
65°
43°
21
64°
40°
22
67°
40°
23
Hist. Avg.
76°
41°
24
Hist. Avg.
76°
41°
25
Hist. Avg.
76°
41°
26
Hist. Avg.
75°
40°
27
Hist. Avg.
75°
40°
28
Hist. Avg.
75°
40°
29
Hist. Avg.
75°
40°
30
Hist. Avg.
74°
39°
31
Hist. Avg.
74°
39°
1
Hist. Avg.
74°
39°
2
Hist. Avg.
74°
38°
3
Hist. Avg.
74°
38°
4
Hist. Avg.
73°
38°
5
Hist. Avg.
73°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Ohio
Ohio's August 2026 forecast shows daily high temperatures ranging from 64° to 73°, with overnight lows between 39° and 45°. The average high for August is 68° with an average low of 42°. 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.