Tens of millions of Americans in the Northeast and Mid-Atlantic are enduring a severe heat wave, with New York City recording its hottest day in 14 years as the nation approaches its July 4th semiquincentennial celebrations. Temperatures soared into the late 90s and reached 100 degrees Fahrenheit in New York City on Thursday, a mark not seen in Central Park since July 18, 2012. Preliminary data from the National Weather Service indicates that Newark Liberty Airport hit 104 degrees, surpassing its 1966 record, while LaGuardia Airport also recorded 104 degrees, breaking a 1966 record. John F. Kennedy International Airport registered a high of 102 degrees.
The intense heat wave coincides with a series of high-profile events in New York, including celebrations for the July Fourth weekend and major sporting events. Residents have sought relief by cooling off in water fountains and fire hydrants. New York City Mayor Eric Adams has urged residents to set their air conditioning units no lower than 78 degrees and conserve energy to prevent potential power grid failures.
The U.S. Department of Energy has issued orders authorizing backup generation in case of grid emergencies, and the city has opened cooling centers for vulnerable populations. Similar extreme temperatures are affecting other major cities in the region, with Washington D.C. and Philadelphia also experiencing near-100-degree weather. Washington National Airport reached 102 degrees, breaking a record from 1898, and Philadelphia tied a 1901 record with 103 degrees. Boston recorded triple-digit temperatures for only the 29th time in its recorded history.
These sweltering conditions are posing challenges for official July Fourth celebrations. Organizers of the Capitol Fourth concert in Washington D.C. canceled public access to a Thursday rehearsal due to the heat, and attendee entry for the Friday concert will be delayed until one hour before the show. Donald Trump's Great American State Fair is also contending with the heat, with organizers anticipating high temperatures for Saturday's fireworks display. Trump has stated his intention to deliver a lengthy speech at the event despite the forecast of approximately 107 degrees. The fair, organized by a Trump-backed nonprofit, has reportedly seen low turnout, with attendees complaining about high prices for food and drinks and limited shade.
A White House official stated that complimentary water distribution stations will be available on Saturday to help attendees cope with the heat. The heat wave is expected to persist through Sunday across the Northeast.