Monthly Historical AveragesRound Lake Beach, IL
Average Temperature
High
14°
Feels 12
Low
3°
Feels 1
Average Precipitation
10 Days
72.9mm
1.6cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, April 4, 2026
Day
12°Feels 9
Wind
32 km/h W
Gust
48 km/h
Humidity
62%
P.O.P
70%
Rain
~1 mm
Night
1°Feels -5
Wind
31 km/h W
Gust
47 km/h
Humidity
75%
P.O.P
30%
Historical AveragesApr 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity