Vernon Hills Weather Forecast

    • 60
    • 79

    Rain Showers

    • 62
    • 72

    Rain Showers Likely

    • 61
    • 75

    Rain Showers Likely

    • 63
    • 74

    Chance Rain Showers

    • 60
    • 79

    Chance Thunderstorms

    • 55
    • 72

    Chance Rain Showers

Today 15 Sep Lake

Showers and a slight chance of Thunderstorms in the Morning, then a slight chance of Showers in the afternoon. A slight chance of Thunderstorms late. Highs in the upper 70s. Southwest Winds 10 to 15 Mph. Chance of precipitation near 100 percent.

Tonight 15 Sep Lake

Mostly cloudy. A slight chance of Showers in the late evening and overnight. Lows in the upper 50s. North Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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Vernon Hills Temperature Statistics

September Temperature

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

  • Lowest 13 September, 2026

    54 °F

  • Average September

    75 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.6 °F
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