Six Flags - Great America Weather Forecast

    • 74
    • 94

    Slight Chance Thunderstorms

    • 67
    • 92

    Chance Thunderstorms

    • 64
    • 83

    Chance Thunderstorms

    • 67
    • 80

    Slight Chance Thunderstorms

    • 69
    • 92

    Chance Thunderstorms

    • 62
    • 83

    Chance Thunderstorms

Today 18 Jun Lake

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms in the Morning, then partly cloudy with a slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. South Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 40 percent.

Tonight 18 Jun Lake

Partly cloudy. Lows in the mid 70s. Southwest Winds 10 to 20 Mph with Gusts up to 30 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Six Flags - Great America Temperature Statistics

June Temperature

Chicago/Waukegan Regional Airport (5 miles)

  • Lowest 11 June, 2024

    44.7 °F
  • Average June

    67.2 °F
  • Highest 13 June, 2024

    90.6 °F

Climate (2019–Present)

Chicago/Waukegan Regional Airport (5 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2019–2024

    42.1 °F
  • Average 2019–2024

    50.6 °F
  • Average High 2019–2024

    58.7 °F
Get an account to remove ads