Grid operators warn the US heatwave could send electricity demand near record levels before Fourth of July weekend.

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

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.

Millions across the central and eastern United States are bracing for a prolonged and dangerous heatwave this week, with temperatures set to soar ahead of the Fourth of July…

Sweltering conditions are expected to last through the weekend

A prolonged, dangerous heat wave will continue to intensify across most of the central to eastern U.S. into the Fourth of July weekend.

Grid operators warn the US heatwave could send electricity demand near record levels before Fourth of July weekend.