New Lenox Weather Forecast

    • 5
    • 28

    Mostly Cloudy

    • -4
    • 8

    Cold

    • -5
    • 9

    Cold

    • -3
    • 4

    Cold

    • 18
    • 22

    Mostly Cloudy

    • 14
    • 29

    Mostly Cloudy

Today 18 Jan Northern Will

Mostly cloudy in the Morning, then becoming partly cloudy. Highs in the upper 20s. North Winds 15 to 25 Mph with Gusts up to 35 Mph in the Morning, becoming northwest 10 to 15 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 18 Jan Northern Will

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 5 above. Northwest Winds 10 to 20 Mph with Gusts up to 25 Mph. Wind chill Values as low as 10 below.

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New Lenox Temperature Statistics

January Temperature

Lewis University Airport (9.3 miles)

  • Lowest 15 January, 2025

    -0.4 °F

  • Average January

    19.7 °F

  • Highest 12 January, 2025

    33.8 °F

Climate (2020–Present)

Lewis University Airport (9.3 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    52.3 °F

  • Average High 2020–2025

    61.5 °F
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