Monthly
     

Monthly Historical AveragesChester, IL

Average Temperature
High
20°
Feels 20
Low
9°
Feels 7
Average Precipitation
10 Days
Rain amount
139.9mm
Snow amount
0.1cm
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Daily Historical Averages

S
M
T
W
T
F
S
ForecastWednesday, April 15, 2026
Day
Cloudy with sunny breaks
29°Feels 30
Wind
28 km/h S
Gust
42 km/h
Humidity
54%
P.O.P
30%
Night
Cloudy with showers
16°Feels 15
Wind
27 km/h SW
Gust
40 km/h
Humidity
93%
P.O.P
40%
Rain
<1 mm
Historical AveragesApr 15
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
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