Millions of Americans are under heat alerts Monday as a heat wave brings triple-digit temperatures or heat indices to nearly half the continental United States, according to the National Weather ...

For the millions of Americans who take medications for common issues like heart disease or high blood pressure, a heatwave like the one causing sweltering conditions across the Central and ...

More than 30 million people are under extreme weather alerts Sunday as a sweltering heat wave lingers across the West. Excessive heat warnings and watches were effective in parts of California, Oregon ...

The season’s most dangerous heat wave so far is expected to hit Southern California this week. Extreme heat and fire weather advisories have been issued beginning Wednesday, set to last for several ...

Many cities that have not seen actual 100-degree temperatures so far this summer will hit the mark this week. The Northeast is getting a brief reprieve before the big heat and humidity roll in later ...

Much of the U.S. is under extreme heat warnings or advisories while New York, Philadelphia and Washington could feel like 100 degrees or more. Heavy rain, flash flooding and severe weather are likely ...

Hot summers are nothing new for much of the United States, but the combination of heat and humidity has taken on a truly antagonistic role this year, pushing us closer to our melting points in an ...

The prolonged, dangerous heat wave is expected to begin broiling much of Southern California on Wednesday, peaking Thursday, Friday and Saturday. A red flag warning has been issued for Los Angeles and ...

From Texas clear to Georgia, from the Gulf Coast on up to the Canadian border, a mass of dangerous heat has started spreading like an atmospheric plague. In the days and perhaps even weeks ahead, a ...