Monthly Historical AveragesFlat Rock, IL
Average Temperature
High
4°
Feels 2
Low
-5°
Feels -9
Average Precipitation
6 Days
24.7mm
11.5cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, February 22, 2026
Day
-2°Feels -8
Wind
30 km/h NW
Gust
45 km/h
Humidity
43%
P.O.P
30%
Night
-8°Feels -15
Wind
22 km/h NW
Gust
33 km/h
Humidity
59%
P.O.P
30%
Historical AveragesFeb 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity