Prospect Heights Weather Forecast

    • 59
    • 80

    Increasing Clouds

    • 60
    • 76

    Mostly Sunny

    • 62
    • 85

    Chance Thunderstorms

    • 53
    • 72

    Slight Chance Thunderstorms

    • 52
    • 66

    Chance Rain Showers

    • 49
    • 67

    Chance Rain Showers

Today 10 Oct Northern Cook

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the upper 70s. South Winds 10 to 15 Mph.

Tonight 10 Oct Northern Cook

Mostly cloudy. Lows in the upper 50s. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Prospect Heights Temperature Statistics

October Temperature

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

  • Lowest 3 October, 2026

    45.6 °F

  • Average October

    61 °F

  • Highest 7 October, 2026

    78.1 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (2.5 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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