A heat dome occurs when a large area of high pressure in the upper atmosphere acts as a reservoir, trapping heat and humidity ...

More than 150 million Americans are under the highest level extreme heat alerts during a wave of above-average temperatures.

The heat wave is lingering in the Chicago area as temperatures hit 90 degrees for the third day in a row. The scorching temps had everybody trying to find ways to cool off, including at public pools ...

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

Sixteen people were sent to the emergency room for heat-related illness following two New Jersey high school graduations ...

The city remains engulfed in a heat dome — and scientists and researchers in Chicago who pay close attention to heat have ...

Chicago is experiencing a dangerous heat wave with the OEMC providing resources like cooling centers and safety tips, and ...

Beaches were filled Monday as daytime temps reached 95, just shy of a record for the date. Some relief is in sight late ...

The rare June heat wave broke about 20 records on Sunday and is expected to break more on Monday. According to The Weather ...

Tens of millions of people across the eastern and central U.S. are bracing for more days of extreme temperatures as an ...

People are beating the heat wave in Chicago the best way they know how -- jumping into the city pools -- on Monday afternoon.

Patients, staff and medical personnel in a Washington Park hospital are coping with steamy conditions Monday afternoon as ...