Monthly Historical AveragesMcLean, IL
Average Temperature
High
0°
Feels -3
Low
-8°
Feels -14
Average Precipitation
5 Days
19.1mm
6.3cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, January 8, 2026
Day
16°Feels 14
Wind
33 km/h S
Gust
50 km/h
Humidity
80%
P.O.P
80%
Rain
5-10 mm
Night
6°Feels 2
Wind
34 km/h S
Gust
51 km/h
Humidity
93%
P.O.P
100%
Rain
10-15 mm
Historical AveragesJan 8
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity