S
M
T
W
T
F
S
26
51°
32°
27
53°
33°
28
55°
42°
29
55°
37°
30
61°
39°
1
64°
46°
2
65°
47°
3
68°
47°
4
69°
49°
5
70°
47°
6
60°
44°
7
68°
49°
8
69°
51°
9
70°
50°
10
69°
51°
11
69°
51°
12
72°
45°
13
60°
41°
14
62°
48°
15
63°
46°
16
62°
48°
17
63°
46°
18
68°
45°
19
66°
49°
20
70°
46°
21
67°
45°
22
66°
45°
23
66°
46°
24
67°
46°
25
71°
47°
26
70°
48°
27
73°
53°
28
73°
56°
29
67°
58°
30
70°
56°
31
76°
50°
1
70°
48°
2
67°
51°
3
73°
58°
4
78°
60°
5
80°
62°
6
81°
52°
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 51° to 81°, with overnight lows between 32° and 62°. The average high for May is 67° with an average low of 48°. 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.