The heat index reached 106 Saturday and an extreme heat warning is in effect until Monday, according to the National Weather ...

Chicagoans can expect intense heat compounded by muggy humidity for the next several days. The National Weather Service has ...

A total of 60 opioid overdoses were reported Friday and Saturday — including more than 37 on Saturday alone — triggering the ...

Relief from the extreme heat facing the Chicago area remains several days away as advisories and warnings remain in effect.

Record-breaking heat indices — a combination of temperatures and humidity to determine how heat really feels to the body — are possible from Kansas City to Maine.

Saturday set a new highest minimum temperature for June 21 in Chicago. Humidity levels are making it feel well over 100 ...

Three hospitals in the Chicago area have had problems with air conditioning as a dangerous heat wave has affected the region ...

It will be dangerously, "oppressively" hot and humid — with little relief at night — Saturday through Monday, according to ...

People experiencing homelessness are particularly vulnerable to the health ramifications of extreme heat, which is worsening ...

A Midwest heat dome is driving high temperatures and high humidity that will push the Chicago heat index into the triple ...

Fourth of July is less than two weeks away. Will the heat wave be over by then? Here's the forecast for Illinois.

Scorching temperatures and high humidity are a bad combo, especially when that's the forecast for three days in a row, making ...