Winnetka Weather Forecast

    • 68
    • 76

    Mostly Sunny

    • 72
    • 88

    Increasing Clouds

    • 68
    • 86

    Rain Showers Likely

    • 67
    • 76

    Slight Chance Thunderstorms

    • 69
    • 81

    Slight Chance Thunderstorms

    • 70
    • 84

    Mostly Sunny

    • 72
    • 88

    Mostly Sunny

Today 7 Jul Northern Cook

Sunny. Highs in the mid 80s Inland, but only in the upper 70s near the lake. North Winds around 5 Mph.

Tonight 7 Jul Northern Cook

Clear. Lows in the upper 60s. South Winds around 5 Mph.

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  • Temperature Real-Time

Winnetka Temperature Statistics

July Temperature

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

  • Lowest 5 July, 2026

    66 °F

  • Average July

    79 °F

  • Highest 1 July, 2026

    95.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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