S
M
T
W
T
F
S
26
93°
72°
27
95°
75°
28
90°
69°
29
87°
65°
30
79°
69°
31
72°
63°
1
81°
63°
2
85°
58°
3
86°
63°
4
71°
60°
5
74°
57°
6
79°
53°
7
82°
57°
8
79°
50°
9
87°
66°
10
86°
67°
11
88°
70°
12
85°
70°
13
78°
69°
14
76°
68°
15
81°
70°
16
78°
62°
17
82°
55°
18
82°
65°
19
75°
59°
20
82°
56°
21
84°
62°
22
81°
57°
23
79°
53°
24
72°
62°
25
80°
59°
26
82°
56°
27
82°
58°
28
81°
65°
29
81°
68°
30
86°
66°
31
82°
62°
1
77°
59°
2
78°
58°
3
78°
58°
4
78°
61°
5
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Storm Lake
Storm Lake's August 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 56° and 68°. The average high for August is 80° with an average low of 61°. 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 Storm Lake. See also: September | October | November.
