Officials warn of health risks as massive weather system traps sweltering air.

The National Weather Service issued an extreme heat warning for the Las Vegas Valley, with temperatures expected to reach 110 ...

The US is bracing for another sweltering summer under a heat dome, reminiscent of past record-breaking heat waves. As extreme ...

The National Weather Service office in Las Vegas also issued an “extreme heat warning” for Death Valley National Park, the ...

The first major U.S. heat wave of the year starts on Friday. It brings dangerously high temperatures and is expected to last ...

Local woman fights heat dangers by providing water to Las Vegas homeless population Next To Trump, Carney Opens G7 Summit With Warning Florida removes record haul of invasive pythons in effort to curb ...

A powerful heat wave continues to grip the Southwest, with dangerously high temperatures impacting much of Arizona, ...

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Cooling stations are open during daytime hours on June 18 and June 19 for those in need of a place to safely escape the heat.

It all comes down to this -- Game 7. A new NBA champion will be crowned Sunday as the Indiana Pacers visit the Oklahoma City Thunder. Tipoff is scheduled for 8 p.m. ET at Paycom Center.

Several small fires have already raced across the rolling hills of Northern California, where the healthy grass crop dried out this spring as temperatures warmed up.