S
M
T
W
T
F
S
26
61°
39°
27
72°
36°
28
64°
36°
29
63°
48°
30
61°
46°
1
64°
39°
2
59°
45°
3
61°
43°
4
73°
37°
5
82°
45°
6
68°
54°
7
64°
45°
8
63°
39°
9
63°
46°
10
73°
48°
11
63°
45°
12
68°
39°
13
73°
46°
14
66°
48°
15
66°
46°
16
82°
41°
17
88°
54°
18
94°
68°
19
97°
71°
20
93°
54°
21
72°
51°
22
64°
47°
23
57°
51°
24
65°
53°
25
74°
54°
26
75°
55°
27
73°
57°
28
77°
57°
29
76°
58°
30
77°
57°
31
82°
54°
1
75°
56°
2
72°
54°
3
69°
54°
4
71°
58°
5
76°
57°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lake Hiawatha
Lake Hiawatha's May 2026 forecast shows daily high temperatures ranging from 57° to 97°, with overnight lows between 47° and 71°. The average high for May is 76° with an average low of 56°. 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 Lake Hiawatha. See also: June | July | August.