S
M
T
W
T
F
S
28
90°
72°
29
92°
76°
30
93°
78°
1
91°
79°
2
91°
68°
3
87°
66°
4
86°
67°
5
86°
70°
6
85°
69°
7
89°
70°
8
90°
68°
9
85°
69°
10
87°
69°
11
88°
66°
12
89°
68°
13
92°
68°
14
93°
71°
15
94°
71°
16
93°
75°
17
98°
75°
18
96°
71°
19
87°
67°
20
92°
68°
21
89°
66°
22
87°
69°
23
88°
63°
24
91°
73°
25
90°
73°
26
92°
72°
27
92°
73°
28
91°
72°
29
89°
70°
30
88°
71°
31
88°
70°
1
87°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Des Moines
Des Moines's July 2026 forecast shows daily high temperatures ranging from 87° to 98°, with overnight lows between 63° and 75°. The average high for July is 90° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Des Moines. See also: August | September | October.