S
M
T
W
T
F
S
30
84°
66°
31
86°
65°
1
84°
57°
2
82°
63°
3
81°
59°
4
76°
58°
5
77°
56°
6
82°
63°
7
82°
55°
8
76°
55°
9
76°
61°
10
75°
63°
11
82°
61°
12
81°
62°
13
82°
61°
14
83°
62°
15
82°
61°
16
83°
62°
17
Hist. Avg.
77°
55°
18
Hist. Avg.
76°
55°
19
Hist. Avg.
76°
54°
20
Hist. Avg.
76°
54°
21
Hist. Avg.
75°
53°
22
Hist. Avg.
75°
53°
23
Hist. Avg.
74°
52°
24
Hist. Avg.
74°
52°
25
Hist. Avg.
74°
52°
26
Hist. Avg.
73°
51°
27
Hist. Avg.
73°
51°
28
Hist. Avg.
72°
50°
29
Hist. Avg.
72°
50°
30
Hist. Avg.
71°
50°
1
Hist. Avg.
71°
49°
2
Hist. Avg.
70°
49°
3
Hist. Avg.
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Des Moines
Des Moines's September 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 55° and 66°. The average high for September is 81° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Des Moines. See also: October | November | December.
