June 18, 2025

Six Flags Great America

Information

Crowd level 2%
Prediction error 4%
Crowd level Empty

Events

🔬 Math & Science Days

Temperature, °C (powered by VisualCrossing)

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Forecast average 22.9 °C
Actual average 21.1 °C

Precipitation intensity, millimeters per hour (powered by VisualCrossing)

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Forecast average 0.83 mm/h
Actual average 0.63 mm/h

Wind speed, meters per second (powered by VisualCrossing)

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Forecast average 5.1 m/s
Actual average 2.9 m/s

Detailed wait times