Six Flags Great America
Amusement Park Large amusement park featuring major roller coasters
A regional amusement park, Six Flags Great America features roller coasters, family rides, and seasonal events; visitors travel for thrill rides and theme-park entertainment.
Six Flags Great America is a large regional amusement park located in Gurnee, Illinois, near the border with Wisconsin; it originally opened in 1976 and later became part of the Six Flags chain. The park features a broad mix of roller coasters, family rides, and live entertainment across a multi-acre site.
Major roller coasters and seasonal events drive attendance, and the park operates seasonally with extended hours during summer and special Halloween and winter events. The site includes guest services, food and retail concessions, and typical amusement park infrastructure.
The park opened as one of the twin Marriott’s Great America parks in 1976 and has since changed ownership and expanded its attractions. Additions over several decades have focused on new coasters and themed areas to maintain regional appeal.
Six Flags Great America sits in northeastern Illinois, about 45 miles north of downtown Chicago and adjacent to Interstate 94, with Gurnee and Lake County as the nearest municipalities.
- Planning tip: Operating seasons and hours vary by ride and time of year; check the park's schedule for seasonal events and peak crowd information.
How to Get to Six Flags Great America #
By car: Six Flags Great America is in the Gurnee/Woodstock area north of Chicago and south of Milwaukee, directly off I‑94 (the Tri‑State Tollway / Chicago-Milwaukee corridor). Follow I‑94 to the Gurnee exits and follow local signs to the park; it’s roughly 30-45 miles north of downtown Chicago and about 30-40 miles south of Milwaukee, with large on‑site parking available.
Public transit to the park is limited; check regional bus operators and seasonal park shuttles for service during peak times.
Tips for Visiting Six Flags Great America #
- Arrive at park opening (or close to it) and head straight for the major coasters; buying a Flash Pass (Six Flags' virtual queue) or similar skip-the-line product is the most reliable way to avoid long waits on peak days.
- Use the official Six Flags mobile app for up-to-date ride status and show times so you can reroute around unexpected closures and plan meals during lower-demand windows.
- If you're visiting in hot weather, save Hurricane Harbor (the adjacent water park) for the hottest part of the day when lines for dry rides are longest, then return to dry attractions later when the heat eases.
Best Time to Visit Six Flags Great America #
Visit Six Flags Great America in late spring or early fall (on weekdays if possible) to avoid the largest summer crowds and heat.
Weather & Climate near Six Flags Great America #
Six Flags Great America's climate is classified as Hot-Summer Continental - Hot-Summer Continental climate with warm summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -11°C to 28°C. Moderate rainfall (882 mm/year).
January
January is the coldest month with highs of -2°C and lows of -11°C. Moderate rainfall (42 mm) and mostly overcast skies.
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February
February is freezing with highs of 1°C and lows of -9°C. Moderate rainfall (32 mm) and mostly overcast skies.
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March
March is cold with highs of 6°C and lows of -3°C. Moderate rainfall (63 mm) and mostly overcast skies.
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April
April is cold with highs of 13°C and lows of 2°C. Regular rainfall (90 mm) and mostly overcast skies.
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May
May is cool with highs of 20°C and lows of 8°C. Regular rainfall (85 mm) and mostly overcast skies.
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June
June is mild with highs of 25°C and lows of 13°C. Regular rainfall (94 mm) and mostly overcast skies.
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July
July is the warmest month with highs of 28°C and lows of 16°C. Regular rainfall (97 mm) and partly cloudy skies.
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August
August is mild with highs of 27°C and lows of 16°C. The wettest month with heavy rain (103 mm) and partly cloudy skies.
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September
September is cool with highs of 23°C and lows of 11°C. Regular rainfall (96 mm) and partly cloudy skies.
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October
October is cool with highs of 16°C and lows of 5°C. Moderate rainfall (60 mm) and partly cloudy skies.
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November
November is cold with highs of 8°C and lows of -1°C. Moderate rainfall (64 mm) and mostly overcast skies.
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December
December is freezing with highs of 1°C and lows of -8°C. Moderate rainfall (56 mm) and mostly overcast skies.
