Vernon Hills Weather Forecast

    • 50
    • 72

    Rain

    • 39
    • 58

    Rain Likely

    • 46
    • 64

    Chance Rain Showers

    • 41
    • 55

    Chance Rain Showers

    • 35
    • 52

    Partly Sunny

    • 38
    • 56

    Partly Sunny

    • 44
    • 58

    Partly Sunny

Today 18 Oct Lake

Mostly cloudy. A slight chance of Showers and Thunderstorms late. Highs in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Tonight 18 Oct Lake

A slight chance of Showers early in the evening. A slight chance of Thunderstorms until early morning. Showers in the late evening and overnight. Breezy. Lows around 50. South Winds 5 to 10 Mph, increasing to northwest 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of precipitation near 100 percent.

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Vernon Hills Temperature Statistics

October Temperature

Chicago / Wheeling, Pal-Waukee Airport (7.5 miles)

  • Lowest 9 October, 2025

    43 °F

  • Average October

    63.2 °F

  • Highest 3 October, 2025

    89.1 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (7.5 miles)

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  • Average Low 2020–2025

    44.3 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    61.6 °F
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