An extremely dangerous heat wave is underway for the eastern half of the United States as a potent heat dome reaches its peak ...

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

Heat puts intense strain on the body, leading to dehydration, exhaustion and potentially deadly heat stroke, in which your ...

NORRISTOWN — A Code Red hot weather emergency declaration in Montgomery County was extended through Wednesday as a heat wave ...

An intense and nearly historic weather pattern is cooking much of America under a dangerous heat dome this week with ...

Utility providers across the Midwest and East reported tens of thousands of power outages due to this week’s heat wave.

The high temperature so far at Philadelphia International Airport reached 99, breaking a record high of 98 set last year.

PECO is working to fix outages from last week’s storm. But thousands of customers are without power for A/C as temperatures ...

It's oppressive outside today in Pennsylvania, as heat indices may near 110 degrees. When is relief on the way? Here's the ...

The Philadelphia area is bracing for a scorching heatwave that will see temperatures reach the triple digits with added ...