Monthly Historical AveragesLerna, IL
Average Temperature
High
18°
Feels 17
Low
7°
Feels 5
Average Precipitation
11 Days
119.3mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, April 12, 2026
Day
25°Feels 25
Wind
33 km/h S
Gust
49 km/h
Humidity
38%
P.O.P
30%
Night
17°Feels 16
Wind
33 km/h SW
Gust
49 km/h
Humidity
90%
P.O.P
40%
Rain
<1 mm
Historical AveragesApr 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity