S
M
T
W
T
F
S
26
58°
40°
27
59°
39°
28
61°
46°
29
66°
42°
30
60°
43°
1
62°
50°
2
61°
51°
3
63°
46°
4
61°
42°
5
61°
42°
6
67°
53°
7
73°
48°
8
63°
48°
9
64°
45°
10
63°
44°
11
64°
55°
12
74°
56°
13
67°
56°
14
74°
50°
15
65°
47°
16
66°
50°
17
68°
57°
18
68°
59°
19
74°
57°
20
68°
53°
21
71°
54°
22
76°
58°
23
76°
59°
24
78°
60°
25
77°
58°
26
79°
60°
27
79°
60°
28
80°
59°
29
82°
59°
30
80°
55°
31
81°
53°
1
74°
52°
2
74°
51°
3
75°
54°
4
75°
58°
5
76°
63°
6
81°
58°
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 58° to 82°, with overnight lows between 39° and 63°. The average high for May is 70° with an average low of 52°. 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.
