S
M
T
W
T
F
S
26
60°
41°
27
70°
41°
28
58°
51°
29
53°
40°
30
45°
37°
1
40°
32°
2
42°
31°
3
56°
30°
4
72°
56°
5
65°
43°
6
48°
37°
7
49°
38°
8
54°
43°
9
52°
45°
10
58°
48°
11
56°
44°
12
58°
46°
13
57°
49°
14
58°
47°
15
57°
49°
16
61°
51°
17
63°
48°
18
69°
52°
19
66°
49°
20
71°
53°
21
68°
53°
22
65°
45°
23
60°
44°
24
61°
45°
25
61°
47°
26
62°
47°
27
63°
48°
28
63°
47°
29
64°
46°
30
64°
48°
31
68°
54°
1
65°
51°
2
66°
50°
3
68°
57°
4
69°
55°
5
67°
55°
6
75°
59°
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 48° to 75°, with overnight lows between 37° and 59°. The average high for May is 62° with an average low of 49°. 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.