S
M
T
W
T
F
S
26
79°
59°
27
87°
66°
28
77°
66°
29
79°
68°
30
78°
62°
31
82°
60°
1
82°
70°
2
84°
68°
3
74°
58°
4
77°
51°
5
83°
59°
6
85°
66°
7
79°
70°
8
85°
69°
9
79°
65°
10
81°
72°
11
79°
67°
12
80°
69°
13
78°
69°
14
76°
65°
15
78°
67°
16
78°
67°
17
76°
66°
18
77°
67°
19
77°
66°
20
75°
67°
21
78°
65°
22
78°
68°
23
77°
67°
24
77°
65°
25
77°
67°
26
83°
69°
27
84°
69°
28
84°
67°
29
77°
64°
30
75°
62°
31
75°
64°
1
76°
68°
2
78°
68°
3
80°
69°
4
82°
68°
5
82°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Painesville
Painesville's August 2026 forecast shows daily high temperatures ranging from 75° to 84°, with overnight lows between 62° and 72°. The average high for August is 78° with an average low of 67°. 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 Painesville. See also: September | October | November.