S
M
T
W
T
F
S
26
59°
45°
27
57°
44°
28
60°
43°
29
61°
45°
30
67°
47°
1
65°
47°
2
65°
46°
3
64°
41°
4
62°
52°
5
62°
50°
6
69°
49°
7
68°
54°
8
70°
54°
9
70°
49°
10
63°
45°
11
73°
54°
12
69°
50°
13
65°
48°
14
66°
48°
15
73°
56°
16
71°
59°
17
76°
57°
18
76°
48°
19
65°
49°
20
67°
51°
21
69°
59°
22
78°
59°
23
78°
61°
24
79°
61°
25
79°
60°
26
71°
60°
27
69°
56°
28
71°
61°
29
71°
62°
30
73°
58°
31
73°
57°
1
72°
55°
2
75°
54°
3
75°
57°
4
80°
59°
5
78°
56°
6
75°
55°
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 57° to 80°, with overnight lows between 41° and 62°. The average high for May is 70° with an average low of 53°. 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.
