Six Flags - Great America Weather Forecast
- 61
- 76
Decreasing Clouds
- 58
- 73
Mostly Sunny
- 65
- 83
Sunny
- 58
- 76
Mostly Sunny
- 58
- 76
Mostly Sunny
- 63
- 78
Chance Rain Showers
- 64
- 79
Slight Chance Thunderstorms
Today 8 Aug Lake
Cloudy. Highs in the mid 70s. Northwest Winds 10 to 15 Mph.
Six Flags - Great America Temperature Statistics
August Temperature
Chicago/Waukegan Regional Airport (5 miles)
Lowest 2 August, 2022
61 °FAverage August
76.7 °FHighest 6 August, 2022
88 °F
Climate (2010–Present)
Chicago/Waukegan Regional Airport (5 miles)
Average Low 2010–Present
41.5 °FAverage 2010–Present
49.9 °FAverage High 2010–Present
57.9 °F