S
M
T
W
T
F
S
26
85°
68°
27
86°
68°
28
85°
67°
29
86°
68°
30
87°
69°
31
87°
69°
1
86°
68°
2
82°
64°
3
80°
62°
4
78°
63°
5
79°
62°
6
79°
61°
7
81°
65°
8
83°
66°
9
85°
67°
10
86°
67°
11
85°
66°
12
83°
65°
13
84°
66°
14
86°
65°
15
85°
67°
16
81°
67°
17
80°
66°
18
87°
68°
19
86°
66°
20
82°
60°
21
83°
58°
22
79°
58°
23
79°
59°
24
80°
60°
25
79°
58°
26
79°
64°
27
80°
59°
28
79°
58°
29
78°
58°
30
78°
56°
31
77°
56°
1
77°
57°
2
78°
58°
3
76°
59°
4
76°
57°
5
79°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Port Clinton
Port Clinton's August 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 56° and 69°. The average high for August is 82° with an average low of 63°. 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 Port Clinton. See also: September | October | November.