S
M
T
W
T
F
S
26
69°
41°
27
63°
42°
28
55°
34°
29
59°
37°
30
54°
33°
1
53°
29°
2
67°
25°
3
73°
44°
4
70°
36°
5
57°
33°
6
52°
37°
7
66°
42°
8
68°
41°
9
66°
45°
10
66°
44°
11
65°
47°
12
68°
49°
13
72°
48°
14
69°
51°
15
73°
52°
16
73°
53°
17
69°
48°
18
72°
53°
19
73°
50°
20
70°
49°
21
66°
45°
22
64°
45°
23
65°
46°
24
66°
46°
25
65°
47°
26
66°
46°
27
66°
47°
28
67°
49°
29
69°
57°
30
68°
54°
31
69°
49°
1
72°
54°
2
74°
58°
3
78°
59°
4
79°
60°
5
79°
61°
6
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Okoboji
Okoboji's May 2026 forecast shows daily high temperatures ranging from 52° to 79°, with overnight lows between 33° and 61°. The average high for May is 69° with an average low of 49°. 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 Okoboji. See also: June | July | August.
