S
M
T
W
T
F
S
26
70°
43°
27
61°
45°
28
55°
37°
29
57°
37°
30
52°
39°
1
N/A
2
66°
45°
3
69°
47°
4
74°
41°
5
56°
38°
6
50°
35°
7
61°
39°
8
68°
45°
9
72°
46°
10
64°
43°
11
67°
50°
12
75°
53°
13
74°
51°
14
70°
47°
15
69°
49°
16
72°
55°
17
73°
54°
18
73°
54°
19
74°
52°
20
70°
51°
21
67°
47°
22
64°
46°
23
65°
47°
24
67°
48°
25
65°
48°
26
66°
49°
27
67°
49°
28
68°
50°
29
70°
59°
30
70°
56°
31
69°
51°
1
73°
56°
2
75°
60°
3
78°
61°
4
79°
62°
5
80°
63°
6
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Storm Lake
Storm Lake's May 2026 forecast shows daily high temperatures ranging from 50° to 80°, with overnight lows between 35° and 63°. The average high for May is 69° with an average low of 50°. 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 Storm Lake. See also: June | July | August.
