NEW YORK (AP) — Extensive triple digit heat, broken temperature records and oppressive humidity piled up into a steaming mess ...

More than 160 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

A life-threatening heat wave has enveloped the East Coast, hitting cities with the worst of the high temperatures on Tuesday ...

Numerous cities along the East Coast broke or tied heat records as temperatures soared to triple digits on Tuesday.

Extreme heat warnings and heat advisories remained in place all the way from St. Louis to Boston on June 24, the National ...

From the Mississippi Valley to the east coast more than 150 million are under heat alerts. Scorching temperatures are hitting ...

Temps are soaring in cities across the Atlantic coast, where some cities are reaching 100 degrees with heat indexes ...

An "extremely dangerous heat wave" is continuing to scorch a huge area of the eastern United States June 23, affecting tens ...

Heat waves are primarily caused by high-pressure systems that push warm air down onto an area and hold it there. During heat ...

The heat wave has arrived. Temperatures and humidity are climbing as the tri-state heads into an expected record-shattering ...

Extensive triple digit heat, broken temperature records and oppressive humidity piled up into a steaming mess as the heat ...

Central Pennsylvania is experiencing a dangerous heat wave with record-challenging temperatures and increasing chances of ...