S
M
T
W
T
F
S
26
72°
53°
27
72°
48°
28
56°
44°
29
60°
44°
30
56°
42°
1
58°
39°
2
63°
37°
3
76°
51°
4
82°
49°
5
59°
44°
6
58°
40°
7
70°
40°
8
76°
46°
9
74°
47°
10
72°
41°
11
75°
45°
12
78°
55°
13
76°
50°
14
80°
52°
15
89°
64°
16
85°
65°
17
87°
69°
18
86°
50°
19
66°
46°
20
70°
50°
21
68°
52°
22
79°
59°
23
78°
58°
24
76°
60°
25
78°
60°
26
79°
64°
27
82°
64°
28
88°
67°
29
72°
56°
30
71°
55°
31
72°
57°
1
72°
54°
2
73°
57°
3
74°
64°
4
82°
65°
5
83°
66°
6
83°
66°
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 66° to 89°, with overnight lows between 46° and 69°. The average high for May is 78° with an average low of 59°. 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.
