On Saturday, more than 842,000 households across the United States lost electricity due to an intense heatwave and adverse weather conditions coinciding with the country's Independence Day celebrations. According to data from PowerOutage, the Midwest and Northeast states were the most affected regions. The extreme temperatures disrupted several events marking the 250th anniversary of U.S. independence, including the cancellation of a scheduled morning parade in Washington, D.C.

The Great American State Fair in the capital was also temporarily closed after multiple attendees required medical attention for heat-related illnesses. National rail operator Amtrak announced the cancellation of several train services due to excessive heat, listing trains numbered 88, 106, 107, 142, 159, 163, 666, 667, 694, and 695 among those affected.

The U.S. National Weather Service reported that about 165 million people across the East Coast and Midwest were under the influence of record-breaking heat. In cities across New York, New Jersey, Pennsylvania, and Delaware, temperatures reached 39.5 degrees Celsius, surpassing all previous records.