S
M
T
W
T
F
S
26
50°
41°
27
50°
41°
28
52°
34°
29
55°
32°
30
50°
32°
1
52°
33°
2
67°
42°
3
66°
47°
4
61°
34°
5
50°
34°
6
51°
32°
7
59°
42°
8
67°
40°
9
64°
41°
10
62°
43°
11
65°
44°
12
64°
43°
13
68°
47°
14
67°
46°
15
61°
46°
16
62°
49°
17
61°
49°
18
69°
53°
19
72°
53°
20
72°
52°
21
66°
46°
22
61°
44°
23
61°
44°
24
63°
45°
25
65°
48°
26
64°
50°
27
65°
49°
28
64°
47°
29
67°
54°
30
71°
48°
31
65°
52°
1
67°
54°
2
68°
53°
3
67°
57°
4
68°
56°
5
69°
51°
6
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Willmar
Willmar's May 2026 forecast shows daily high temperatures ranging from 50° to 72°, with overnight lows between 32° and 57°. The average high for May is 64° with an average low of 47°. 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 Willmar. See also: June | July | August.
