As the United States prepares to celebrate its 250th anniversary on the Fourth of July, extreme heat is expected to disrupt festivities from Washington to Los Angeles. The heatwave poses challenges for planned events and celebrations across the country, potentially affecting attendance and safety measures.

More than 165 million people in the United States are facing extreme heat and humidity, with temperatures forecasted to remain at 38°C (100°F) for several days. As a result, Fourth of July events have been canceled in cities including Washington, D.C., and Philadelphia, due to safety concerns related to the brutal weather conditions, according to BBC World.

At least 19 people have died in New Jersey from suspected heat-related causes during a record-breaking heat wave that affected the East Coast over the July 4 holiday weekend, according to state officials. New Jersey Health Commissioner Dr. Raynard Washington reported the fatalities at a news conference, indicating that many victims were found in homes without air conditioning.

The United States celebrated its 250th birthday with fireworks and flyovers, amidst reports of intense weather conditions across the country, according to BBC World. The event highlighted both the festivities and the challenges posed by scorching heat and delays during the celebrations.

Extreme weather conditions have caused significant disruptions to the United States' 250th anniversary celebrations, leading to evacuations, cancellations, and delays of planned events, according to Al Jazeera.

The United States celebrated its 250th birthday on July 4, 2026, with fireworks, flyovers, and notable extreme weather conditions. This federal holiday commemorates the signing of the Declaration of Independence in 1776 by the 13 original colonies, marking the end of British rule.