S
M
T
W
T
F
S
26
87°
66°
27
90°
67°
28
90°
69°
29
89°
68°
30
76°
65°
1
65°
54°
2
74°
51°
3
79°
46°
4
81°
48°
5
86°
54°
6
86°
73°
7
79°
64°
8
68°
64°
9
69°
66°
10
86°
64°
11
83°
65°
12
85°
67°
13
86°
64°
14
88°
59°
15
89°
58°
16
87°
65°
17
87°
62°
18
90°
67°
19
91°
73°
20
91°
71°
21
80°
72°
22
89°
70°
23
85°
68°
24
83°
69°
25
77°
70°
26
80°
72°
27
83°
73°
28
82°
70°
29
80°
69°
30
86°
68°
31
85°
70°
1
86°
66°
2
85°
65°
3
84°
67°
4
85°
66°
5
87°
70°
6
89°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Willis
Willis's May 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 65° and 73°. The average high for May is 84° with an average low of 69°. 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 Willis. See also: June | July | August.
