S
M
T
W
T
F
S
26
52°
45°
27
72°
48°
28
68°
52°
29
55°
45°
30
55°
43°
1
48°
41°
2
48°
39°
3
63°
39°
4
72°
58°
5
63°
47°
6
56°
44°
7
54°
42°
8
62°
47°
9
61°
49°
10
62°
49°
11
59°
48°
12
61°
50°
13
63°
55°
14
64°
53°
15
63°
54°
16
65°
56°
17
69°
53°
18
69°
58°
19
68°
57°
20
71°
58°
21
70°
53°
22
65°
50°
23
64°
50°
24
65°
51°
25
65°
53°
26
66°
52°
27
66°
52°
28
67°
53°
29
67°
54°
30
68°
58°
31
74°
59°
1
68°
57°
2
71°
59°
3
74°
63°
4
76°
63°
5
75°
64°
6
79°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Clinton
Port Clinton's May 2026 forecast shows daily high temperatures ranging from 54° to 79°, with overnight lows between 42° and 65°. The average high for May is 67° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Port Clinton. See also: June | July | August.
