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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Claytonville, IL
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September
Average Temperature
High
26°
Feels 27
Low
13°
Feels 13
Average Precipitation
9 Days
Rain amount
53.1mm
Snow amount
0cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
34°
4
34°
5
31°
6
28°
7
28°
8
31°
9
34°
10
31°
11
26°
12
27°
13
28°
14
28°
15
28°
16
27°
17
26°
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Thursday, September 3, 2026
Day
34°
Feels 39
Wind
34 km/h SW
Gust
51 km/h
Humidity
53%
P.O.P
40%
Rain
~1 mm
Night
23°
Feels 23
Wind
13 km/h S
Gust
20 km/h
Humidity
89%
P.O.P
40%
Rain
<1 mm
Historical Averages
Sep 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.