Waukegan Regional Airport Weather Forecast

    • 40
    • 58

    Partly Sunny

    • 43
    • 56

    Partly Sunny

    • 44
    • 58

    Partly Sunny

    • 48
    • 59

    Mostly Cloudy

    • 49
    • 59

    Chance Rain Showers

    • 50
    • 63

    Slight Chance Rain Showers

Today 23 May Lake

Partly cloudy. Highs in the lower 60s Inland, but only in the upper 50s near the lake. North Winds 5 to 10 Mph.

Tonight 23 May Lake

Partly cloudy in the Evening, then clearing. Lows around 40. East Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Waukegan Regional Airport Temperature Statistics

May Temperature

Chicago/Waukegan Regional Airport (0 miles)

  • Lowest 9 May, 2025

    36.6 °F

  • Average May

    55 °F

  • Highest 16 May, 2025

    86.6 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (0 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59.5 °F
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