Northeast Heat Wave Brings 38°C Readings to New York and Washington

Temperatures reached or surpassed 38°C in New York and Washington on July 2, 2026, as a heat wave that had broiled the Midwest intensified across the Northeast, Le Monde reported. The National Weather Service warned the heat index could peak as high as 46°C in the mid-Atlantic region the same day.

Millions of Americans experienced stifling heat and humidity, with pools packed and power grids strained across affected regions.

New York designated hundreds of public buildings as cooling centers, extended public swimming pool hours, dispatched volunteers to check on vulnerable residents, and opened cooling stations equipped with misting fans and wet towels. City authorities also warned of multiple shark sightings that would trigger intermittent closures at one of the city's most popular beaches over the July 4 weekend.

New York Mayor Zohran Mamdani stated on social media that the power grid is working overtime to keep residents cool and asked residents to set air conditioning to 26°C.

The city's electric authority requested that residents defer using appliances such as dishwashers and laundry machines and avoid excessive air conditioning use. Philadelphia officials urged residents to use ovens only when absolutely necessary. A rodeo on the National Mall that is part of America's 250th anniversary festivities was postponed due to the heat.

A dress rehearsal for an annual holiday concert on the lawn of the U.S. Capitol was closed to the public. Le Monde reported that more frequent, longer-lasting and more intense heat waves are occurring as a sign of climate change.

Global average surface temperatures have risen roughly 1.4°C above pre-industrial averages, with this week's heat dome conditions occurring when high-pressure systems trap warm air.