Waukegan Regional Airport Weather Forecast

    • 37
    • 55

    Rain Showers

    • 46
    • 62

    Partly Sunny

    • 43
    • 71

    Partly Sunny

    • 41
    • 58

    Partly Sunny

    • 43
    • 56

    Partly Sunny

    • 45
    • 59

    Rain Showers Likely

Today 7 May Lake

Mostly cloudy. Isolated Showers in the afternoon. Highs in the upper 50s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation 20 percent.

Tonight 7 May Lake

Partly cloudy. Lows in the upper 30s. Southwest Winds 5 to 10 Mph.

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Waukegan Regional Airport Temperature Statistics

May Temperature

Chicago/Waukegan Regional Airport (0 miles)

  • Lowest 2 May, 2026

    27.6 °F

  • Average May

    49.6 °F

  • Highest 4 May, 2026

    80.7 °F

Climate (2021–Present)

Chicago/Waukegan Regional Airport (0 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    59.8 °F
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