S
M
T
W
T
F
S
26
63°
41°
27
72°
42°
28
67°
51°
29
56°
43°
30
48°
36°
1
42°
34°
2
46°
30°
3
57°
44°
4
67°
57°
5
65°
48°
6
51°
40°
7
48°
38°
8
49°
39°
9
54°
41°
10
60°
43°
11
56°
44°
12
58°
44°
13
62°
46°
14
63°
49°
15
64°
46°
16
69°
53°
17
72°
52°
18
71°
51°
19
65°
49°
20
72°
52°
21
70°
52°
22
65°
45°
23
62°
44°
24
63°
45°
25
63°
47°
26
64°
47°
27
64°
46°
28
65°
46°
29
65°
47°
30
66°
48°
31
70°
53°
1
67°
51°
2
68°
50°
3
69°
57°
4
71°
56°
5
70°
56°
6
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Conneaut Lake
Conneaut Lake's May 2026 forecast shows daily high temperatures ranging from 46° to 76°, with overnight lows between 30° and 58°. The average high for May is 64° with an average low of 48°. 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 Conneaut Lake. See also: June | July | August.