Waukegan Weather Forecast

    • 45
    • 62

    Rain Showers

    • 40
    • 50

    Partly Sunny

    • 37
    • 51

    Mostly Cloudy

    • 36
    • 48

    Partly Sunny

    • 40
    • 52

    Partly Sunny

    • 44
    • 62

    Slight Chance Rain Showers

Today 28 Apr Lake

Cloudy in the Morning, then becoming partly cloudy. Breezy. Highs in the upper 50s. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the morning.

Tonight 28 Apr Lake

Mostly cloudy. Isolated Showers in the late evening and early morning. Scattered Showers late. Lows in the mid 40s. Northwest Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waukegan Temperature Statistics

April Temperature

Chicago/Waukegan Regional Airport (3.7 miles)

  • Lowest 7 April, 2026

    26.7 °F

  • Average April

    50.7 °F

  • Highest 12 April, 2026

    81.6 °F

Climate (2021–Present)

Chicago/Waukegan Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    59.8 °F
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