S
M
T
W
T
F
S
26
72°
40°
27
71°
38°
28
73°
34°
29
64°
36°
30
50°
34°
1
48°
32°
2
62°
27°
3
72°
31°
4
76°
42°
5
61°
40°
6
41°
26°
7
67°
21°
8
76°
37°
9
80°
40°
10
64°
45°
11
81°
41°
12
85°
42°
13
82°
44°
14
86°
50°
15
84°
44°
16
86°
41°
17
82°
45°
18
78°
35°
19
63°
39°
20
55°
45°
21
58°
44°
22
71°
43°
23
75°
48°
24
76°
47°
25
77°
46°
26
76°
48°
27
73°
49°
28
76°
49°
29
78°
50°
30
77°
45°
31
81°
49°
1
75°
50°
2
72°
47°
3
70°
42°
4
72°
48°
5
77°
50°
6
81°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Des Moines
Des Moines's May 2026 forecast shows daily high temperatures ranging from 55° to 82°, with overnight lows between 35° and 51°. The average high for May is 73° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Des Moines. See also: June | July | August.
