Mount Prospect Weather Forecast

    • 43
    • 62

    Sunny

    • 45
    • 65

    Mostly Sunny

    • 47
    • 67

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 52
    • 72

    Mostly Sunny

    • 52
    • 72

    Partly Sunny

Today 18 Oct Northern Cook

Sunny. Highs in the lower 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 18 Oct Northern Cook

Clear. Lows in the lower 40s. South Winds 5 to 10 Mph.

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Mount Prospect Temperature Statistics

October Temperature

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

  • Lowest 16 October, 2026

    43 °F

  • Average October

    62.8 °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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