S
M
T
W
T
F
S
26
67°
40°
27
75°
39°
28
70°
49°
29
68°
48°
30
59°
46°
1
54°
39°
2
49°
30°
3
47°
35°
4
59°
45°
5
69°
52°
6
58°
44°
7
51°
37°
8
47°
38°
9
51°
41°
10
53°
42°
11
57°
41°
12
54°
42°
13
53°
44°
14
55°
41°
15
58°
42°
16
59°
43°
17
59°
40°
18
60°
47°
19
67°
47°
20
66°
46°
21
64°
48°
22
67°
45°
23
60°
44°
24
62°
44°
25
62°
42°
26
63°
45°
27
61°
46°
28
62°
50°
29
69°
50°
30
67°
49°
31
67°
46°
1
64°
43°
2
62°
43°
3
62°
44°
4
64°
44°
5
63°
45°
6
64°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cornwallville
Cornwallville's May 2026 forecast shows daily high temperatures ranging from 47° to 69°, with overnight lows between 30° and 52°. The average high for May is 60° with an average low of 43°. 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 Cornwallville. See also: June | July | August.
