S
M
T
W
T
F
S
26
60°
24°
27
55°
37°
28
50°
29°
29
48°
26°
30
49°
24°
1
56°
35°
2
69°
37°
3
69°
46°
4
51°
30°
5
47°
29°
6
47°
29°
7
55°
33°
8
63°
34°
9
61°
37°
10
62°
38°
11
64°
38°
12
61°
40°
13
67°
39°
14
66°
40°
15
59°
34°
16
60°
43°
17
60°
43°
18
70°
45°
19
68°
43°
20
64°
41°
21
62°
39°
22
61°
38°
23
60°
37°
24
63°
39°
25
64°
41°
26
65°
47°
27
65°
46°
28
64°
41°
29
70°
44°
30
65°
43°
31
66°
48°
1
65°
48°
2
66°
49°
3
66°
53°
4
68°
52°
5
68°
52°
6
69°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mayville
Mayville's May 2026 forecast shows daily high temperatures ranging from 47° to 70°, with overnight lows between 29° and 53°. The average high for May is 63° with an average low of 41°. 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 Mayville. See also: June | July | August.