Winnetka Weather Forecast

    • 39
    • 52

    Becoming Sunny

    • 47
    • 57

    Mostly Sunny

    • 47
    • 64

    Mostly Sunny

    • 55
    • 64

    Sunny

    • 58
    • 69

    Partly Sunny

    • 58
    • 66

    Chance Rain Showers

    • 60
    • 69

    Slight Chance Thunderstorms

Today 8 May Northern Cook

Mostly cloudy late in the Morning, then becoming partly cloudy late in the Morning, then becoming sunny in the afternoon. Breezy. Highs in the upper 50s Inland, but only in the lower 50s near the lake. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 8 May Northern Cook

Clear. Areas of frost late. Lows in the upper 30s. Northeast Winds 5 to 10 Mph.

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Winnetka Temperature Statistics

May Temperature

Chicago / Wheeling, Pal-Waukee Airport (8.7 miles)

  • Lowest 6 May, 2025

    44.1 °F

  • Average May

    54.3 °F

  • Highest 6 May, 2025

    75.9 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (8.7 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.5 °F
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