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14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Des Moines International Airport, IA
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September
Average Temperature
High
25°
Feels 26
Low
14°
Feels 13
Average Precipitation
9 Days
Rain amount
74.7mm
Snow amount
0.1cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
34°
5
34°
6
30°
7
31°
8
34°
9
31°
10
27°
11
28°
12
29°
13
29°
14
27°
15
27°
16
26°
17
25°
18
24°
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Friday, September 4, 2026
Day
34°
Feels 39
Wind
24 km/h SW
Gust
36 km/h
Humidity
53%
P.O.P
40%
Rain
~1 mm
Night
23°
Feels 23
Wind
14 km/h S
Gust
21 km/h
Humidity
94%
P.O.P
20%
Historical Averages
Sep 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.