Prospect Heights Weather Forecast

    • 37
    • 54

    Mostly Sunny

    • 42
    • 54

    Mostly Cloudy

    • 44
    • 58

    Mostly Cloudy

    • 44
    • 56

    Mostly Cloudy

    • 44
    • 55

    Chance Rain Showers

    • 41
    • 55

    Chance Rain Showers

Today 24 Oct Northern Cook

Mostly sunny. Highs in the lower 50s. North Winds around 5 Mph.

Tonight 24 Oct Northern Cook

Mostly clear in the Evening, then becoming partly cloudy. Areas of frost after midnight. Lows in the mid 30s. Light and variable Winds.

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Prospect Heights Temperature Statistics

October Temperature

Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)

  • Lowest 20 October, 2025

    37.9 °F

  • Average October

    61.9 °F

  • Highest 3 October, 2025

    89.1 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)

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  • Average Low 2020–2025

    44.3 °F

  • Average 2020–2025

    53.1 °F

  • Average High 2020–2025

    61.6 °F
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