Prospect Heights Weather Forecast

    • 60
    • 78

    Increasing Clouds

    • 57
    • 72

    Rain Showers Likely

    • 54
    • 71

    Partly Sunny

    • 58
    • 74

    Mostly Cloudy

    • 57
    • 76

    Chance Thunderstorms

    • 58
    • 74

    Slight Chance Thunderstorms

Today 20 Jun Northern Cook

Mostly sunny. Highs in the upper 70s. Northwest Winds 10 to 15 Mph.

Tonight 20 Jun Northern Cook

Partly cloudy. Lows in the upper 50s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Prospect Heights Temperature Statistics

June Temperature

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

  • Lowest 3 June, 2026

    48.7 °F

  • Average June

    69.9 °F

  • Highest 10 June, 2026

    90.6 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (2.5 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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