September 20, 2026

Six Flags Great America

Information

Crowd level Very quiet (6%)
Prediction error 37%

Events

🍺 Oktoberfest
👻 Fright Fest
🤡 Kids Boo Fest

Temperature, °C (powered by VisualCrossing)

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Actual average 17.3 °C

Precipitation intensity, millimeters per hour (powered by VisualCrossing)

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Actual average 0.52 mm/h

Wind speed, meters per second (powered by VisualCrossing)

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Actual average 5.2 m/s

Detailed wait times