Prospect Heights Weather Forecast

    • 77
    • 92

    Thunderstorms

    • 67
    • 91

    Thunderstorms Likely

    • 68
    • 81

    Areas Smoke

    • 72
    • 89

    Thunderstorms Likely

    • 63
    • 87

    Slight Chance Thunderstorms

    • 61
    • 79

    Mostly Sunny

    • 63
    • 82

    Partly Sunny

Today 17 Jul Northern Cook

Patchy smoke. Numerous Showers and scattered Thunderstorms. Temperatures around 90. Southwest Winds around 10 Mph. Chance of precipitation 60 percent.

Tonight 17 Jul Northern Cook

Partly cloudy. Scattered Showers and Thunderstorms early in the evening. Humid. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Prospect Heights Temperature Statistics

July Temperature

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

  • Lowest 7 July, 2026

    62.7 °F

  • Average July

    78.1 °F

  • Highest 14 July, 2026

    97 °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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