Prospect Heights Weather Forecast

    • 65
    • 83

    Slight Chance Thunderstorms

    • 70
    • 84

    Rain Showers Likely

    • 68
    • 85

    Thunderstorms Likely

    • 65
    • 80

    Rain Showers Likely

    • 63
    • 80

    Chance Thunderstorms

    • 61
    • 77

    Slight Chance Thunderstorms

Today 8 Aug Northern Cook

Partly cloudy in the Morning, then clearing. Highs in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 8 Aug Northern Cook

Clear in the Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms late. Lows in the mid 60s. South Winds around 5 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Prospect Heights Temperature Statistics

August Temperature

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

  • Lowest 3 August, 2026

    61.6 °F

  • Average August

    72.2 °F

  • Highest 4 August, 2026

    85.6 °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

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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