S
M
T
W
T
F
S
26
94°
72°
27
96°
71°
28
90°
65°
29
90°
62°
30
82°
69°
31
74°
63°
1
84°
58°
2
84°
63°
3
86°
63°
4
74°
54°
5
77°
56°
6
82°
60°
7
85°
64°
8
88°
68°
9
85°
66°
10
87°
69°
11
90°
63°
12
80°
62°
13
82°
62°
14
80°
63°
15
79°
61°
16
84°
65°
17
85°
68°
18
86°
67°
19
84°
65°
20
84°
65°
21
83°
67°
22
86°
66°
23
83°
65°
24
81°
65°
25
83°
64°
26
75°
63°
27
77°
63°
28
82°
62°
29
82°
64°
30
83°
65°
31
84°
64°
1
83°
63°
2
84°
65°
3
85°
65°
4
84°
64°
5
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Okoboji
Okoboji's August 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 54° and 69°. The average high for August is 83° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Okoboji. See also: September | October | November.
