Waukegan Weather Forecast

    • 68
    • 77

    Chance Rain Showers

    • 66
    • 77

    Chance Thunderstorms

    • 65
    • 78

    Mostly Sunny

    • 67
    • 79

    Partly Sunny

    • 64
    • 76

    Chance Thunderstorms

    • 60
    • 75

    Chance Rain Showers

Today 16 Aug Lake

Mostly cloudy with a 40 percent chance of Showers and Thunderstorms. Patchy fog after midnight. Lows in the upper 60s. Northeast Winds around 5 Mph in the evening becoming north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waukegan Temperature Statistics

August Temperature

Chicago/Waukegan Regional Airport (4.3 miles)

  • Lowest 1 August, 2018

    61 °F
  • Average August

    73.4 °F
  • Highest 4 August, 2018

    96.1 °F

Climate (2010–Present)

Chicago/Waukegan Regional Airport (4.3 miles)

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  • Average Low 2010–Present

    40.2 °F
  • Average 2010–Present

    48.8 °F
  • Average High 2010–Present

    56.6 °F
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