Heat forces changes to July Fourth events as US marks 250 years
Extreme heat across the eastern US has canceled parades, closed events and slowed trains during the country’s semiquincentennial celebrations.
By James Whitfield · Staff Writer
3 min read
An intense heat wave is disrupting Fourth of July events as the United States marks 250 years since the Declaration of Independence. Officials across the eastern US are warning that heat and humidity could pose health risks for crowds gathering for parades, concerts, fairs and fireworks.
The anniversary commemorates the adoption of the Declaration of Independence on July 4, 1776. Al Jazeera, citing AP, AFP and Reuters reporting, said this year’s events are larger than a typical Independence Day calendar and follow years of planning.
Congress created the bipartisan America250 commission a decade ago to help organize the anniversary, according to Al Jazeera. President Donald Trump later issued an executive order creating a Freedom 250 committee to oversee many high-profile events, including the Great American State Fair on the National Mall in Washington, DC.
Major events draw large crowds
Washington is expected to draw hundreds of thousands of people for the Great American State Fair along the National Mall, a 2.5km promenade between the US Capitol and the Washington Monument. Organizers said the fair includes state pavilions, food, live music and a Ferris wheel, while Trump has promised what he described on Truth Social as the largest fireworks show in history.
Other major events are planned across the country. America250 is holding a benefit concert in Los Angeles hosted by Queen Latifah, with performers including Chris Stapleton, Maren Morris and the Smashing Pumpkins, according to the organization.
Philadelphia, where the Declaration was signed, is hosting commemorations that include the burial of a 400kg time capsule intended to be opened in 250 years, America250 said. In New York, Sail4th said more than 40 tall ships are expected in New York Harbor with almost 20,000 sailors aboard, while Boston’s celebrations include the Boston Pops Fireworks Spectacular and a public reading of the Declaration of Independence.
Heat cancels or alters celebrations
The weather has already forced changes. The Great American State Fair temporarily closed on Friday as temperatures in parts of Washington rose above 39 degrees Celsius, according to Al Jazeera.
Philadelphia officials canceled the Salute to Independence Semiquincentennial Parade after first considering a shortened route to reduce heat risks. In Pennsylvania, Lower Windsor Township rescheduled a celebration for July 8, while Norristown officials canceled a parade because of safety concerns.
Transportation has also been affected. Amtrak announced several cancellations in the Northeast and warned that other trains could be delayed because high temperatures can affect rail infrastructure.
“Extreme heat can cause rail, bridge and overhead wires to expand,” Amtrak said Thursday. The railroad said it may impose heat restrictions requiring trains to run more slowly, which can lead to delays.
Cities open cooling sites
Forecast air temperatures in cities including Philadelphia and Boston were expected to reach about 38 degrees Celsius, according to Al Jazeera. High humidity can make conditions feel hotter because it slows the body’s ability to cool itself through sweating.
Vijay Limaye, a climate scientist at the Natural Resources Defense Council, told The Associated Press that city heat can exceed what people see in forecasts because concrete, asphalt and steel absorb heat.
New York City has deployed more than 200 teams of government workers and volunteers to check on homeless residents and direct people to cooling centers, including public buildings, mobile cooling vans and outdoor misting sites. Mayor Zohran Mamdani urged residents to stay indoors and asked people to set air conditioners to 26 degrees Celsius to limit pressure on the power grid.
Boston is offering free admission to several air-conditioned museums, while Providence, Rhode Island, has extended hours at public pools and water parks, according to Al Jazeera.
The National Weather Service recommends drinking water even before feeling thirsty, taking hourly breaks in shade or air conditioning and checking on older adults and other vulnerable people. The agency lists heat illness warning signs as cramping, rapid pulse, heavy sweating, hot red skin, dizziness, confusion, nausea and vomiting, and advises seeking medical help if they appear.
This story draws on original reporting from Al Jazeera.