Monthly Historical AveragesChicago Heights, IL
Average Temperature
High
-1°
Feels -5
Low
-9°
Feels -14
Average Precipitation
4 Days
12mm
9.2cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, January 15, 2026
Day
-6°Feels -12
Wind
20 km/h W
Gust
30 km/h
Humidity
58%
P.O.P
10%
Night
-7°Feels -14
Wind
23 km/h S
Gust
35 km/h
Humidity
86%
P.O.P
60%
Snow
~1 cm
Historical AveragesJan 15
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity