S
M
T
W
T
F
S
26
80°
62°
27
83°
65°
28
82°
58°
29
79°
60°
30
78°
57°
1
76°
59°
2
78°
56°
3
81°
57°
4
78°
61°
5
80°
61°
6
77°
60°
7
78°
61°
8
82°
63°
9
83°
64°
10
83°
64°
11
84°
63°
12
84°
64°
13
83°
64°
14
84°
63°
15
82°
62°
16
85°
64°
17
86°
65°
18
85°
65°
19
84°
64°
20
80°
59°
21
80°
63°
22
85°
65°
23
86°
66°
24
87°
67°
25
87°
68°
26
88°
68°
27
88°
67°
28
87°
68°
29
88°
68°
30
88°
69°
31
86°
68°
1
87°
67°
2
88°
67°
3
89°
66°
4
88°
64°
5
85°
65°
6
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Willmay
Willmay's May 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 56° and 69°. The average high for May is 84° with an average low of 64°. 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 Willmay. See also: June | July | August.