S
M
T
W
T
F
S
26
97°
76°
27
95°
81°
28
88°
77°
29
86°
72°
30
84°
70°
31
78°
63°
1
82°
63°
2
84°
65°
3
85°
67°
4
76°
65°
5
70°
63°
6
81°
66°
7
86°
65°
8
85°
72°
9
90°
69°
10
91°
70°
11
88°
69°
12
86°
69°
13
79°
64°
14
75°
65°
15
77°
64°
16
76°
63°
17
79°
64°
18
79°
63°
19
80°
65°
20
84°
64°
21
83°
63°
22
89°
70°
23
88°
69°
24
86°
69°
25
85°
69°
26
86°
68°
27
87°
68°
28
82°
66°
29
76°
64°
30
76°
61°
31
77°
63°
1
75°
65°
2
76°
66°
3
82°
66°
4
84°
65°
5
83°
65°
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 75° to 91°, with overnight lows between 61° and 72°. The average high for August is 82° with an average low of 66°. 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.
