Chicago's air quality plummeted, making it the world's worst at one point due to Canadian wildfire smoke, according to IQ Air and the Chicago Sun-Times. Health officials advise limited outdoor activity and protective measures.

Chicago experiences heavy rain with an 80% chance of showers, possible flash floods, and severe weather warnings, including damaging winds. Temperatures to drop with cooler air incoming.

Chicago faces high temperatures in the low to mid-90s, with a chance of showers and thunderstorms. A cold front is expected to bring relief from humidity and heat by mid-week.

Chicago faced a heat advisory with a high near 92 degrees and heat index values up to 104, with a risk of severe weather and potential storms. Cooler temperatures were expected later in the week.

Chicago is experiencing high temperatures with forecasts predicting a start to the week at around 85 degrees, potentially reaching 94 degrees with heat indices up to 103. Thunderstorms are possible, but a cooling trend is expected later in the week.

Chicago is on Flood Watch with potential intense rainfall; severe thunderstorms could bring damaging winds. Heatwave and varying temperatures expected in the upcoming days.

A power outage hit Chicago's Belmont Cragin during a heatwave, leaving residents without AC overnight. Power was restored by the morning as the city braced for potentially the hottest day of the year.

Chicago faces thunderstorms and potential urban flooding after a heatwave, as temperatures near mid-90s and heat indexes hit 103, with over 600 households losing power.

Chicago is under a Heat Advisory due to high temperatures, with safety measures like cooling centers in place. Showers and thunderstorms are also expected later in the week.

Chicago is facing extreme heat, with temperatures expected to soar into the mid-90s and heat indices up to 115 degrees. Air quality is also a concern, with PM2.5 levels deemed unhealthy.

Chicago's weather forecast includes thunderstorms, high heat, and humidity, with temperatures peaking around 93-94 degrees midweek and possible relief by the weekend.

Chicago faces a mix of storms and heat with thunderstorms starting Saturday and continuing through the week, per National Weather Service and ABC7 forecasts.

Chicago's weather will be sunny today with a high of 78°F, but the National Weather Service predicts storms overnight and into the weekend, with a chance of severe conditions starting Saturday and high temperatures continuing into next week.