S
M
T
W
T
F
S
26
88°
70°
27
88°
70°
28
87°
68°
29
85°
67°
30
85°
68°
31
84°
68°
1
85°
67°
2
84°
67°
3
82°
63°
4
83°
67°
5
84°
67°
6
85°
68°
7
85°
67°
8
77°
63°
9
76°
60°
10
78°
64°
11
83°
67°
12
83°
67°
13
82°
66°
14
81°
67°
15
75°
66°
16
75°
65°
17
76°
66°
18
81°
66°
19
83°
65°
20
83°
65°
21
72°
55°
22
74°
55°
23
72°
56°
24
74°
59°
25
82°
56°
26
74°
60°
27
73°
61°
28
75°
59°
29
81°
54°
30
75°
60°
31
75°
62°
1
76°
57°
2
81°
65°
3
84°
61°
4
84°
56°
5
79°
52°
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 88°, with overnight lows between 52° and 70°. The average high for August is 80° with an average low of 63°. 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.
