S
M
T
W
T
F
S
26
83°
70°
27
83°
69°
28
81°
67°
29
85°
71°
30
88°
71°
31
88°
69°
1
84°
69°
2
87°
71°
3
81°
60°
4
80°
65°
5
82°
64°
6
83°
63°
7
82°
62°
8
83°
61°
9
83°
68°
10
84°
67°
11
82°
62°
12
85°
61°
13
80°
60°
14
80°
62°
15
81°
65°
16
80°
63°
17
80°
60°
18
79°
59°
19
80°
61°
20
80°
66°
21
81°
68°
22
85°
68°
23
87°
67°
24
86°
63°
25
86°
62°
26
81°
59°
27
79°
59°
28
80°
64°
29
84°
57°
30
79°
58°
31
79°
60°
1
78°
63°
2
78°
63°
3
79°
57°
4
78°
56°
5
76°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Des Moines
West Des Moines's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 56° and 71°. The average high for August is 82° 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 West Des Moines. See also: September | October | November.
