Six Flags Great America re-implements a chaperone policy due to safety concerns, requiring minors under 16 to be accompanied by an adult. The policy is strict from July 17-20 and evenings after that.

Chicago's weather forecast includes sunny skies and warm temperatures early in the week, with potential showers and thunderstorms midweek and temperatures reaching near 90 degrees.

Chicago had varied weather, starting with sun and possible showers, then severe storms and tornado potential, followed by calmer and warmer conditions, but with ongoing chances for showers and thunderstorms.

Chicago faced a weekend of unpredictable weather, with chances of severe storms, hail, and strong winds, leading to disruptions like airport halts and prompting safety cautions.

Chicago is experiencing a warm spell with temperatures near 90 degrees and intermittent storm chances, including possible gusty storms with downpours in the forecast.

Heavy rains in Chicago caused widespread flooding, submerging roads and prompting water rescues, with over 5 inches falling in some areas in under 3 hours.

Torrential rains in Chicago caused widespread flooding and left cars stranded earlier in the week, with over 5 inches of rain in some areas. The severe weather also echoes a tragic situation in Texas, where over 160 people are missing after floods.

Chicago's weather this week includes sunshine, rain, and thunderstorms with temperatures reaching the high 80s and possibly 90°. A 40% chance of precipitation is expected, with varying conditions throughout the week.

Chicago experiences a cool Monday, but heat is expected to return with upper 80s temperatures and chances of rain and thunderstorms throughout the week.

High waves create hazards at Chicago beaches post-Fourth of July; National Weather Service urges caution due to rip currents and strong winds, advising against swimming.

Chicago's weekend forecast for the NASCAR race includes mostly clear skies, high of 95 degrees, and a slight chance of rain with some thunderstorms at night.

Chicago experiences mixed Independence Day weather with a chance of storms and high heat. An air quality alert warns of high ozone levels, potentially affecting sensitive groups.

Chicago is experiencing its 18th day of a heat wave, with temperatures consistently reaching the 90s and a slight chance of afternoon showers or thunderstorms.