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Monthly
Precipitation
Temperature
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Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Oak Park, IL
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September
Average Temperature
High
24°
Feels 25
Low
15°
Feels 15
Average Precipitation
10 Days
Rain amount
69.2mm
Snow amount
0cm
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
29°
16
21°
17
24°
18
23°
19
26°
20
23°
21
22°
22
20°
23
21°
24
22°
25
23°
26
23°
27
23°
28
23°
29
22°
30
Forecast
Tuesday, September 15, 2026
Day
29°
Feels 32
Wind
20 km/h SW
Gust
36 km/h
Humidity
62%
P.O.P
60%
Rain
<1 mm
Night
19°
Feels 19
Wind
15 km/h N
Gust
23 km/h
Humidity
94%
P.O.P
80%
Rain
10-15 mm
Historical Averages
Sep 15
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.