Monthly Historical AveragesWalnut, IL
Average Temperature
High
-2°
Feels -6
Low
-10°
Feels -17
Average Precipitation
5 Days
7.1mm
17.4cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, January 17, 2026
Day
-8°Feels -16
Wind
27 km/h W
Gust
41 km/h
Humidity
57%
P.O.P
40%
Snow
~1 cm
Night
-14°Feels -22
Wind
26 km/h W
Gust
39 km/h
Humidity
79%
P.O.P
40%
Snow
<1 cm
Historical AveragesJan 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity