Six Flags - Great America Weather Forecast

    • 27
    • 51

    Decreasing Clouds

    • 23
    • 37

    Mostly Sunny

    • 29
    • 37

    Snow

    • 27
    • 39

    Chance Rain/Snow

    • 28
    • 37

    Chance Rain/Snow

    • 35
    • 41

    Rain/Snow Likely

Today 19 Mar Lake

Partly cloudy. Highs in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 19 Mar Lake

Partly cloudy in the Evening, then clearing. Lows in the upper 20s. Northwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Six Flags - Great America Temperature Statistics

March Temperature

Chicago/Waukegan Regional Airport (5 miles)

  • Lowest 11 March, 2024

    28.9 °F
  • Average March

    45.2 °F
  • Highest 12 March, 2024

    72.6 °F

Climate (2019–Present)

Chicago/Waukegan Regional Airport (5 miles)

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  • Average Low 2019–2024

    41.9 °F
  • Average 2019–2024

    50.3 °F
  • Average High 2019–2024

    58.5 °F
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