Monthly Historical AveragesColchester, IL
Average Temperature
High
1°
Feels -3
Low
-8°
Feels -14
Average Precipitation
4 Days
12.9mm
9cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, January 9, 2026
Day
9°Feels 8
Wind
24 km/h NW
Gust
36 km/h
Humidity
57%
P.O.P
20%
Night
1°Feels -4
Wind
17 km/h NE
Gust
26 km/h
Humidity
100%
P.O.P
60%
Snow
<1 cm
Rain
2-4 mm
Historical AveragesJan 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity