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

Temperatures are expected to soar along the Interstate 95 corridor on the East Coast next week, with cities like Philadelphia ...

Heat is the number one killer -- and it’s heading to the most densely populated part of America for a prolonged period.

Some parts of the U.S., such as Phoenix, Arizona, are famously hot without the mugginess. Phoenix and nearby desert regions ...

The first of two rounds of extreme heat is underway for parts of the eastern half of the US, the opening act for a potent and widespread heat dome that will send temperatures to dangerous, ...

Extreme heat warnings are in effect across Arizona and Nevada, raising concerns for children's health. Heat advisories span ...

Just in time for the start of summer on June 20, a heat wave is expected to scorch a large section of the United States, ...

Extreme temperatures and humidity from a heat dome will pose health risks to millions across the U.S., experts say.

Nassau and Suffolk counties are at "marginal risk" of showers and thunderstorms between 2 and 10 p.m. on both Wednesday and ...

Summer will make a dramatic entrance in the U.S. this week with a heat dome that will bring stifling temperatures and uncomfortable humidity to millions. The heat will be particularly worrisome this ...