S
M
T
W
T
F
S
26
66°
50°
27
70°
49°
28
70°
48°
29
68°
49°
30
66°
46°
1
69°
51°
2
68°
47°
3
69°
51°
4
72°
53°
5
73°
54°
6
73°
55°
7
72°
56°
8
74°
55°
9
74°
54°
10
67°
54°
11
65°
55°
12
70°
56°
13
75°
55°
14
73°
55°
15
73°
56°
16
76°
57°
17
76°
57°
18
77°
53°
19
77°
50°
20
70°
50°
21
68°
52°
22
69°
51°
23
68°
52°
24
71°
55°
25
73°
61°
26
77°
59°
27
80°
61°
28
74°
61°
29
81°
59°
30
82°
53°
31
73°
59°
1
78°
55°
2
81°
61°
3
84°
63°
4
83°
55°
5
82°
54°
6
73°
54°
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 65° to 84°, with overnight lows between 46° and 63°. The average high for May is 73° with an average low of 54°. 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.
