Cook County Forest Preserve Weather Forecast

    • 3
    • 7

    Blustery

    • 14
    • 20

    Partly Sunny

    • 10
    • 29

    Chance Snow

    • 7
    • 18

    Mostly Cloudy

    • 2
    • 19

    Chance Snow

    • -2
    • 12

    Chance Snow

Today 19 Jan Northern Cook

Mostly cloudy in the Morning, then becoming partly cloudy. Isolated snow Showers early in the morning. Blustery with Highs around 7 above. West Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of precipitation 20 percent. Wind chill Values as low as 25 below.

Tonight 19 Jan Northern Cook

Mostly cloudy in the Evening, then becoming partly cloudy. Near steady temperature around 4 above. West Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to 5 to 10 Mph after midnight. Wind chill Values as low as 13 below.

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Cook County Forest Preserve Temperature Statistics

January Temperature

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

  • Lowest 1 January, 2026

    10.9 °F

  • Average January

    31.9 °F

  • Highest 8 January, 2026

    60.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    61.7 °F
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