Prospect Heights Weather Forecast

    • 15
    • 22

    Blizzard

    • 24
    • 29

    Mostly Cloudy

    • 9
    • 32

    Chance Snow

    • 11
    • 19

    Partly Sunny

    • 15
    • 25

    Mostly Cloudy

    • 16
    • 27

    Partly Sunny

Today 29 Dec Northern Cook

Cloudy. A chance of Flurries. Windy. Near steady temperature in the lower 20s. Northwest Winds 20 to 30 Mph, Diminishing to 15 to 25 Mph in the afternoon. Gusts up to 40 Mph.

Tonight 29 Dec Northern Cook

Cloudy, Blustery with Lows around 14. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to 10 to 15 Mph after midnight.

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Prospect Heights Temperature Statistics

December Temperature

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

  • Lowest 14 December, 2025

    -2 °F

  • Average December

    27.4 °F

  • Highest 23 December, 2025

    54 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.5 °F
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