A dangerous heat wave upended Fourth of July celebrations across swaths of the central and eastern U.S. on Friday, forcing officials in the nation’s capital and elsewhere to cancel or postpone dozens of parades, concerts and fireworks displays.
Among the events disrupted by the sweltering heat was the Great American State Fair on the National Mall in Washington, a centerpiece of President Donald Trump’s efforts to mark the nation’s 250th birthday.
The fair, designed to showcase all 50 states, was temporarily closed on Friday afternoon as temperatures reached 101 degrees Fahrenheit (38 degrees Celsius).
Late on Friday, organizers of the National Park Service’s Independence Day Parade in Washington announced they had canceled the annual event due to safety concerns. The parade had been scheduled to start at 10:30 ET (1430 GMT) on Saturday, with the Weather Service projecting heat index values to reach as high as 115 degrees Fahrenheit.
Record-breaking temperatures spread to the eastern U.S. from the Midwest earlier this week due to the emergence of a high-pressure system known as a “heat dome,” which traps a mass of hot air over a region and can cause humidity to spike.
The scorching conditions also strained power grids. PJM, the largest U.S. power grid operator serving 67 million people in the Mid-Atlantic, South and Washington, D.C., areas, ordered customers enrolled in emergency conservation programs to curb usage. The steps were needed to battle generator outages, overloaded transmission lines and a surge in air-conditioning demand due to the heat.
In New York, Con Edison said roughly 17,000 customers were without power as of late Friday afternoon. As demand surged, it urged customers in New York City and Westchester County to conserve electricity.
In New York City, shoe soles stuck to Manhattan streets as adhesives softened in the heat. The city’s extreme heat warning did not stop fans from gathering on sweltering sidewalks to watch celebrity guests arrive at Madison Square Garden for what was widely expected to be the wedding celebration of pop megastar Taylor Swift and football hero Travis Kelce.
A worker waved SUVs carrying guests into the venue while holding a water bottle in one hand and a towel to wipe sweat from his face in the other.
Over 185 million people, more than half the U.S. population, were under heat alerts on Friday, the National Weather Service said. Peak heat indexes could reach 115 F (46 C) in parts of the country, with several cities setting record temperature highs.
Forecasters and government officials have warned that the heat wave could prove deadly. They urged Americans spending the long weekend outdoors to stay hydrated, seek shade and watch for signs of heat illness at gatherings and public events.
Source : https://www.reuters.com/world/us/heat-wave-disrupts-fourth-july-events-across-eastern-us-2026-07-03/
