As much of the Eastern U.S. experiences potentially record-breaking daytime temperatures, the nights are also staying unusually warm, leaving the human body no time to recover.

A major heat wave is expected to bring record-breaking temperatures to multiple cities in the Northeast and Midwest.

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 prolonged, dangerous heat wave will intensify across most of the central to eastern U.S. this week, the National Weather Service said.

Heat domes trap overnight temperatures too — and millions without air conditioning are facing this week's Eastern U.S. heat wave.

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.

Forecasters warn of scorching conditions in the Midwest and Great Lakes states. The Northeast is up next.

The party has gone quiet on the issue. As a heat wave sends temperatures soaring past 100, they can’t remain mum any longer.

The nation is gripped in a dangerous heat dome. Threatening millions of people in the Midwest and Eastern United States.

Residents have been urged to slash their energy use as the heat wave bakes the eastern U.S.

As much of the Eastern U.S. experiences potentially record-breaking daytime temperatures, the nights are also staying unusually warm, leaving the human body no time to recover.

A dangerous heat wave is tightening its grip on the East Coast, with the worst conditions arriving as millions prepare to celebrate the Fourth of July outdoors.

A dangerous heat wave is bringing prolonged extreme heat to more than two dozen states across the Midwest, the South and the East Coast.

Millions of Americans sweltered in stifling heat and humidity Thursday with dangerous temperatures expected to hit major cities through the Fourth of July holiday weekend.

Millions of Americans sweltered in stifling heat and humidity Thursday with dangerous temperatures expected to hit swaths of densely populated areas through the Fourth of July…

NEW YORK: Pools were packed and power grids strained as millions of Americans sweltered in stifling heat and humidity Thursday, with dangerous temperatures expected to hit major…

The heat wave threatens to overwhelm U.S. grids and may force some to change their plans on one of the busiest travel weeks of the year.

My day of extreme heat in the nation’s capital

Changes are on the way that will lead to the breakdown of the weeklong extreme heat in the central and eastern United States.

A soul-crushing "Heat Dome" will build...