Monthly Historical AveragesBethalto, IL
Average Temperature
High
19°
Feels 19
Low
8°
Feels 6
Average Precipitation
11 Days
129.2mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, April 1, 2026
Day
18°Feels 19
Wind
18 km/h SE
Gust
27 km/h
Humidity
81%
P.O.P
100%
Rain
5-10 mm
Night
15°Feels 14
Wind
22 km/h NE
Gust
33 km/h
Humidity
93%
P.O.P
30%
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity