Monthly Historical AveragesWinnetka, IL
Average Temperature
High
18°
Feels 18
Low
9°
Feels 8
Average Precipitation
12 Days
104.7mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, May 27, 2026
Day
22°Feels 22
Wind
21 km/h NE
Gust
32 km/h
Humidity
56%
P.O.P
20%
Night
13°Feels 11
Wind
25 km/h N
Gust
38 km/h
Humidity
77%
P.O.P
10%
Historical AveragesMay 27
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity