Besides temperatures feeling in the high 90s, Chicago and surrounding areas are under an air quality alert until midnight, ...

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

Air quality in the Chicago area remains poor for the third straight day in a row, with an air quality alert in effect through Wednesday night, along with extremely muggy conditions and the chance for ...

Today is partly sunny and hot! Highs will be in the upper 80s and low 90s with the heat index pushing to around 100!

Chicago weather forecast Wednesday includes chance of severe storms; isolated tornado possible Wednesday will be very hot and humid, with highs in the low 90s. Between about 3 and 8 p.m., strong to ...

PM2.5 pollution is spiking in many counties in Utah and is accompanied by the typical summer pollutant of ozone. It makes for a nasty mix of pollution.

Chicago faces its 18th day over 90°, with potential severe storms and high ozone levels; cooler weather is expected later in the week.

Chicago’s heat streak continues with a possible round of late-day storms today, before a brief cooldown and then another warm-up next week.

Millions of Americans across nine states were urged to avoid driving and limit outdoor activities on Wednesday as air quality ...

Thirty years ago, a heat wave settled over northeast Illinois. By the time the heat relented, 739 people had died and the ...

Tool shows history of heat-related deaths, demographics, land use and air conditioning access across communities.

An air quality alert was extended through Wednesday by the National Weather Service for the Chicago area. ABC7 Chicago is now streaming 24/7. Click here to watch Chopper 7 captured as smoke from ...