Cook County Forest Preserve Weather Forecast

    • 19
    • 29

    Snow

    • 19
    • 23

    Mostly Cloudy

    • 4
    • 33

    Snow Showers Likely

    • 0
    • 15

    Mostly Sunny

    • 18
    • 25

    Slight Chance Snow

    • 18
    • 30

    Chance Snow

    • 11
    • 27

    Slight Chance Snow

Today 1 Dec Northern Cook

Intermittent Flurries early in the afternoon. Snow late. Snow accumulation around an inch. Highs around 30. South Winds around 5 Mph. Chance of precipitation near 100 percent.

Tonight 1 Dec Northern Cook

Snow in the Evening, then intermittent Flurries after midnight. Snow accumulation around an inch. Lows around 17. South Winds around 5 Mph, becoming west after midnight. Chance of precipitation near 100 percent.

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Cook County Forest Preserve Temperature Statistics

December Temperature

Chicago, Chicago-O'Hare International Airport (2.5 miles)

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  • Average December

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Climate (2020–Present)

Chicago, Chicago-O'Hare International Airport (2.5 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    61.7 °F
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