Mount Prospect Weather Forecast

    • 52
    • 66

    Chance Rain Showers

    • 54
    • 70

    Slight Chance Thunderstorms

    • 56
    • 78

    Slight Chance Rain Showers

    • 59
    • 82

    Partly Sunny

    • 61
    • 85

    Slight Chance Thunderstorms

    • 61
    • 82

    Slight Chance Thunderstorms

Today 22 May Northern Cook

Mostly cloudy. Highs in the mid 60s Inland, but only around 60 near the lake. East Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 22 May Northern Cook

Cloudy. A slight chance of Showers in the late evening and overnight. Lows in the lower 50s. East Winds 10 to 15 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Prospect Temperature Statistics

May Temperature

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

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    56.6 °F

  • Highest 17 May, 2026

    85.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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