Monthly Historical AveragesMarkham, IL
Average Temperature
High
2°
Feels -1
Low
-4°
Feels -9
Average Precipitation
7 Days
25.3mm
8.5cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, December 26, 2025
Day
11°Feels 9
Wind
17 km/h NW
Gust
26 km/h
Humidity
82%
P.O.P
40%
Rain
~1 mm
Night
2°Feels -1
Wind
11 km/h N
Gust
17 km/h
Humidity
100%
P.O.P
40%
Historical AveragesDec 26
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity