Mount Prospect Weather Forecast

    • 65
    • 80

    Thunderstorms Likely

    • 61
    • 79

    Slight Chance Thunderstorms

    • 59
    • 77

    Partly Sunny

    • 61
    • 78

    Partly Sunny

    • 65
    • 81

    Slight Chance Thunderstorms

    • 64
    • 82

    Chance Rain Showers

Today 21 Aug Northern Cook

Mostly cloudy. A slight chance of Showers and Thunderstorms late in the morning. A chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.

Tonight 21 Aug Northern Cook

Mostly cloudy. Showers and Thunderstorms likely early in the Evening, then a chance of Showers and Thunderstorms late in the evening. A slight chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of precipitation 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Prospect Temperature Statistics

August Temperature

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

  • Lowest 3 August, 2026

    61.6 °F

  • Average August

    74.2 °F

  • Highest 7 August, 2026

    87.7 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (3.7 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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