S
M
T
W
T
F
S
26
70°
45°
27
70°
46°
28
61°
45°
29
57°
41°
30
54°
36°
1
54°
36°
2
61°
32°
3
73°
48°
4
79°
43°
5
57°
37°
6
52°
30°
7
63°
32°
8
73°
37°
9
70°
43°
10
68°
36°
11
66°
36°
12
79°
50°
13
70°
45°
14
75°
45°
15
84°
54°
16
79°
61°
17
77°
63°
18
73°
61°
19
64°
45°
20
61°
43°
21
55°
48°
22
61°
46°
23
73°
52°
24
82°
58°
25
83°
59°
26
86°
58°
27
84°
57°
28
82°
57°
29
79°
56°
30
75°
53°
31
74°
54°
1
76°
53°
2
78°
52°
3
77°
53°
4
78°
55°
5
79°
56°
6
77°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wadena
Wadena's May 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 52° and 59°. The average high for May is 79° with an average low of 55°. 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 Wadena. See also: June | July | August.