S
M
T
W
T
F
S
26
68°
45°
27
61°
43°
28
54°
36°
29
54°
34°
30
52°
37°
1
52°
34°
2
66°
30°
3
72°
46°
4
63°
36°
5
50°
30°
6
48°
27°
7
61°
32°
8
73°
36°
9
61°
39°
10
63°
32°
11
70°
30°
12
73°
54°
13
72°
41°
14
79°
45°
15
90°
52°
16
81°
46°
17
77°
55°
18
64°
55°
19
54°
41°
20
57°
34°
21
63°
46°
22
61°
46°
23
70°
50°
24
82°
48°
25
85°
63°
26
85°
60°
27
82°
59°
28
80°
56°
29
81°
55°
30
79°
55°
31
76°
54°
1
78°
57°
2
79°
56°
3
78°
59°
4
77°
60°
5
79°
58°
6
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Waseca
Waseca's May 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 54° and 63°. The average high for May is 80° with an average low of 58°. 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 Waseca. See also: June | July | August.