Monthly Historical AveragesSwansea, IL
Average Temperature
High
19°
Feels 19
Low
8°
Feels 7
Average Precipitation
11 Days
127mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, April 3, 2026
Day
27°Feels 28
Wind
24 km/h S
Gust
36 km/h
Humidity
57%
P.O.P
40%
Rain
<1 mm
Night
16°Feels 15
Wind
22 km/h SW
Gust
33 km/h
Humidity
97%
P.O.P
100%
Rain
~15 mm
Historical AveragesApr 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity