Waukegan Weather Forecast

    • 2
    • 14

    Chance Flurries

    • 0
    • 14

    Partly Sunny

    • 2
    • 13

    Chance Snow

    • 7
    • 15

    Chance Snow

    • 9
    • 21

    Partly Sunny

    • 14
    • 24

    Slight Chance Snow

    • 13
    • 26

    Mostly Cloudy

Today 27 Jan Lake

Mostly cloudy. Patchy blowing and Drifting snow. A slight chance of snow in the Morning, then a chance of Flurries in the afternoon. Blustery. Highs around 13. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of precipitation 20 percent. Wind chill Values as low as 9 below.

Tonight 27 Jan Lake

Mostly clear in the Evening, then becoming partly cloudy. Lows around 1 above. West Winds 5 to 10 Mph. Wind chill Values as low as 14 below.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waukegan Temperature Statistics

January Temperature

Chicago/Waukegan Regional Airport (3.7 miles)

  • Lowest 23 January, 2026

    -14.1 °F

  • Average January

    23.1 °F

  • Highest 9 January, 2026

    59.6 °F

Climate (2021–Present)

Chicago/Waukegan Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    59.5 °F
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