Monthly Historical AveragesRio, IL
Average Temperature
High
17°
Feels 16
Low
5°
Feels 3
Average Precipitation
10 Days
84.4mm
0.2cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, April 12, 2026
Day
23°Feels 23
Wind
36 km/h S
Gust
54 km/h
Humidity
61%
P.O.P
80%
Rain
1-3 mm
Night
17°Feels 16
Wind
32 km/h S
Gust
48 km/h
Humidity
94%
P.O.P
90%
Rain
~5 mm
Historical AveragesApr 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity