Winnetka Weather Forecast
- 46
- 53
Partly Sunny
- 46
- 58
Mostly Sunny
- 47
- 56
Partly Sunny
- 47
- 56
Mostly Cloudy
- 45
- 54
Chance Rain
- 43
- 54
Chance Rain
- 42
- 55
Slight Chance Rain
Today 25 Oct Northern Cook
Mostly cloudy. A slight chance of Showers in the late morning and early afternoon. A slight chance of Sprinkles late. Highs in the lower 50s. Southeast Winds 5 to 10 Mph. Chance of precipitation 20 percent.
Tonight 25 Oct Northern Cook
Mostly cloudy in the Evening, then becoming partly cloudy after midnight. A slight chance of Sprinkles early in the evening. Lows in the lower 40s. East Winds 5 to 10 Mph.
Winnetka Temperature Statistics
October Temperature
Chicago / Wheeling, Pal-Waukee Airport (8.7 miles)
Lowest 20 October, 2025
37.9 °FAverage October
60.6 °FHighest 3 October, 2025
89.1 °F
Climate (2020–Present)
Chicago / Wheeling, Pal-Waukee Airport (8.7 miles)
Average Low 2020–2025
44.3 °FAverage 2020–2025
53.1 °FAverage High 2020–2025
61.6 °F