Monthly Historical AveragesPontoon Beach, IL
Average Temperature
High
20°
Feels 20
Low
9°
Feels 7
Average Precipitation
11 Days
128mm
0.1cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, April 1, 2026
Day
23°Feels 23
Wind
19 km/h SW
Gust
29 km/h
Humidity
69%
P.O.P
90%
Rain
~15 mm
Night
17°Feels 17
Wind
22 km/h S
Gust
33 km/h
Humidity
91%
P.O.P
30%
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity