S
M
T
W
T
F
S
30
72°
51°
31
72°
54°
1
71°
60°
2
70°
60°
3
70°
59°
4
69°
57°
5
69°
54°
6
71°
52°
7
70°
51°
8
71°
52°
9
70°
49°
10
74°
50°
11
72°
54°
12
66°
50°
13
67°
56°
14
71°
51°
15
66°
50°
16
Hist. Avg.
72°
54°
17
Hist. Avg.
72°
54°
18
Hist. Avg.
71°
53°
19
Hist. Avg.
71°
53°
20
Hist. Avg.
70°
53°
21
Hist. Avg.
70°
53°
22
Hist. Avg.
70°
52°
23
Hist. Avg.
69°
52°
24
Hist. Avg.
69°
52°
25
Hist. Avg.
69°
52°
26
Hist. Avg.
68°
52°
27
Hist. Avg.
68°
51°
28
Hist. Avg.
68°
51°
29
Hist. Avg.
67°
51°
30
Hist. Avg.
67°
51°
1
Hist. Avg.
66°
50°
2
Hist. Avg.
66°
50°
3
Hist. Avg.
65°
50°
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 66° to 74°, with overnight lows between 49° and 60°. The average high for September is 70° 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 September weather will actually feel in Des Moines. See also: October | November | December.
