Mount Prospect Weather Forecast

    • 55
    • 75

    Slight Chance Rain Showers

    • 56
    • 70

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 58
    • 77

    Mostly Sunny

    • 60
    • 78

    Partly Sunny

    • 61
    • 79

    Partly Sunny

Today 28 Aug Northern Cook

Variable cloudiness. Scattered Showers with isolated Thunderstorms through mid morning. A chance of Showers and Thunderstorms in the afternoon. Highs in the mid 70s. West Winds 5 to 10 Mph, increasing to northeast 10 to 15 Mph in the afternoon. Chance of precipitation 30 percent.

Tonight 28 Aug Northern Cook

Increasing cloudiness. Lows in the mid 50s. Northeast Winds 5 to 10 Mph.

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Mount Prospect Temperature Statistics

August Temperature

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

  • Lowest 2 August, 2025

    58.6 °F

  • Average August

    76.5 °F

  • Highest 9 August, 2025

    96.7 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    61.5 °F
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