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7 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Marshalltown, IA
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September
Average Temperature
High
24°
Feels 25
Low
12°
Feels 12
Average Precipitation
9 Days
Rain amount
84.6mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
27°
8
31°
9
25°
10
24°
11
26°
12
26°
13
28°
14
23°
15
23°
16
23°
17
22°
18
21°
19
21°
20
20°
21
20°
22
23
24
25
26
27
28
29
30
Forecast
Monday, September 7, 2026
Day
27°
Feels 28
Wind
25 km/h SE
Gust
38 km/h
Humidity
51%
P.O.P
40%
Rain
<1 mm
Night
19°
Feels 19
Wind
24 km/h SE
Gust
36 km/h
Humidity
78%
P.O.P
40%
Rain
<1 mm
Historical Averages
Sep 7
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.