Monthly Historical AveragesMonticello, IL
Average Temperature
High
18°
Feels 17
Low
6°
Feels 4
Average Precipitation
10 Days
77.6mm
0.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, April 11, 2026
Day
18°Feels 18
Wind
18 km/h SE
Gust
26 km/h
Humidity
39%
P.O.P
30%
Night
14°Feels 13
Wind
20 km/h SE
Gust
30 km/h
Humidity
88%
P.O.P
30%
Historical AveragesApr 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity