A severe heat wave entered its final stretch across the eastern United States on Friday, disrupting July 4 celebrations, straining power grids and placing nearly 160 million Americans under major or extreme heat warnings. The extreme weather, intensified by climate change, also threatened to trigger severe thunderstorms as the country marked the 250th anniversary of its independence, according to the National Weather Service.

Cities open cooling centres, extended pool hours and urged residents to conserve electricity

With temperatures forecast to reach up to 42 degrees, the US president told an audience he planned to make a long speech, “just to show that I can do anything”.

Gaining freedom from the heat will be a challenge this Independence Day in the eastern U.S., and it's already starting ahead of the holiday weekend.

A heat wave over the Fourth of July weekend could put millions at risk of heat-related illnesses. Here’s what to do to stay safe—and why you don’t just need to drink lots of water

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 nation's 250th birthday weekend coincides with a deadly heat wave. Here are some ways to keep cool and potentially save your life.

Festivities marking the 250th anniversary of American independence are ramping up across the United States

A 'prolonged, dangerous heatwave' is sweeping across the central and eastern United States, just hours ahead of the Fourth of July holiday. The temperature is expected to go up to…

Fourth of July weather update: Millions across the eastern United States face dangerous heat this Fourth of July weekend, with temperatures potentially reaching 115 degrees…

More than 250 million Americans are experiencing a dangerous heat wave that has already spoiled some Fourth of July plans.

More than 250 million Americans are experiencing a dangerous heat wave that has already spoiled some Fourth of July plans.

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.

Early Friday afternoon, Freedom 250 announced that the Great American State Fair on the National Mall would temporarily close until 5 pm due to the heat.

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…