While millions of Americans across the Northeast experienced record-setting temperatures, thunderstorms in the Midwest downed trees, ruptured power lines and made transportation treacherous.

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

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…

High humidity is expected to make conditions feel even hotter

With bigger fireworks celebrations across the US, cities are expected to experience poor air quality under historic heat.

July 4 heatwave: A severe heatwave is gripping millions across the US, threatening July 4th celebrations with record-breaking temperatures and dangerous humidity. Outdoor events…

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.

Dangerous heat dome disrupts American celebrations in Midwest and East Coast with travel delays and health problems

Cities and towns across the U.S. are facing the tough decision of canceling or postponing festivities as a triple-digit heatwave continues.

A punishing heat wave threatened America's July 4th celebrations, World Cup matches and power grids as near-record temperatures scorched the eastern United States on Friday.

Extreme heat has prompted event cancellations and delays as millions celebrate America’s big birthday.

A dangerous heatwave disrupts Fourth of July celebrations across the eastern U.S., leading to numerous event cancellations and delays.

The United States marks the 250th anniversary of its independence on Saturday amid a historic heat wave that has forced the suspension or rescheduling of events in several cities…

A punishing heatwave threatened America's July 4 celebrations, World Cup matches and power grids as near-record temperatures scorched the eastern United States on Friday.

A dangerous heat wave has disrupted July Fourth events across the United States, including Donald Trump's flagship Great American State Fair, as the nation prepares to mark its…

Extremely dangerous heat, coupled with humidity, could result in heat index readings of 100 to 115 degrees from the Midwest to the East Coast, forecasters said.

Scorching conditions have forced officials in the US capital and elsewhere to cancel or postpone parades, concerts and fireworks displays.

A severe heatwave has disrupted Fourth of July celebrations across the central and eastern United States, forcing cancellations of parades, concerts, and fireworks.…

A punishing heat wave threatened America’s July 4th celebrations, World Cup matches and power grids as near-record temperatures scorched the eastern United

A dangerous heat wave disrupts July 4th celebrations across the U.S., affecting events, World Cup matches, and power grids.

America’s 250th birthday also marks the final stretch of one of the most intense eastern US heat waves in years — one made worse by climate change.