Millions across the central and eastern U.S. could face days of triple-digit heat index values.

Forecasters warn of triple-digit heat indices and blazing hot temperatures that could break records and linger through Independence Day.

Dangerous heat is expected across large swaths of the U.S. this week, according to the National Weather Service.

A heat wave will blast a large swath of the United States this week. The National Weather Service says temperatures rising ahead of the July 4th holiday will feel hotter because…

Millions across the central and eastern U.S. could face days of triple-digit heat index values.

A heat wave will blast a large swath of the U.S. this week. The National Weather Service says temperatures will feel hotter because of the high humidity that's arriving with it.

A heat wave will blast the eastern United States this week

More than 130 million Americans in southern and Great Plains states were under moderate to severe heat risk over the weekend

Millions of Americans across the eastern half of the US are facing a prolonged stretch of dangerous and potentially record-breaking heat as Americans get set to head outdoors to…

A “heat dome” is expected to bring extremely high temperatures to parts of the country.

A heat dome will push indexes to 115°F across the East this week, arriving along with World Cup matches and America 250 celebrations.