Mount Prospect Weather Forecast

    • 50
    • 57

    Rain Showers

    • 52
    • 62

    Rain Showers

    • 52
    • 67

    Mostly Cloudy

    • 58
    • 67

    Rain Showers Likely

    • 55
    • 70

    Chance Rain Showers

    • 50
    • 67

    Chance Rain Showers

Today 30 Oct Northern Cook

Mostly cloudy. Highs in the upper 50s.

Tonight 30 Oct Northern Cook

Cloudy. Scattered Sprinkles early in the Evening, then scattered Showers in the late evening and overnight. Nearly steady Temperatures in the lower 50s. East Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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Mount Prospect Temperature Statistics

October Temperature

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

  • Lowest 17 October, 2026

    37.7 °F

  • Average October

    60.2 °F

  • Highest 12 October, 2026

    88.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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