Monthly Historical AveragesDeer Park, IL
Average Temperature
High
23°
Feels 23
Low
11°
Feels 10
Average Precipitation
12 Days
85.6mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, May 27, 2026
Day
31°Feels 31
Wind
11 km/h NE
Gust
17 km/h
Humidity
31%
P.O.P
10%
Night
16°Feels 15
Wind
17 km/h E
Gust
26 km/h
Humidity
68%
P.O.P
10%
Historical AveragesMay 27
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity