Waukegan Weather Forecast

    • 72
    • 97

    Chance Thunderstorms

    • 64
    • 78

    Chance Thunderstorms

    • 68
    • 74

    Chance Thunderstorms

    • 70
    • 88

    Chance Thunderstorms

    • 67
    • 85

    Chance Thunderstorms

    • 68
    • 81

    Chance Thunderstorms

Today 23 Jun Lake

Sunny, breezy. Continued hot and humid with Highs in the mid 90s. Southwest Winds 15 to 20 Mph, becoming 15 to 25 Mph in the afternoon. Gusts up to 35 Mph. Heat index Values up to 102.

Tonight 23 Jun Lake

Partly cloudy early in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms through the early overnight. A slight chance of Showers and Thunderstorms late. Breezy with Lows in the mid 70s. West Winds 15 to 20 Mph with Gusts up to 35 Mph, Diminishing to around 5 Mph after midnight. Chance of precipitation 40 percent.

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Waukegan Temperature Statistics

June Temperature

Chicago/Waukegan Regional Airport (3.7 miles)

  • Lowest 1 June, 2025

    38.6 °F

  • Average June

    66.8 °F

  • Highest 17 June, 2025

    93 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (3.7 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59.4 °F
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