Record-breaking heatwave continues across Northeast U.S.
A heat dome settled over the United States beginning June 23, 2025, driving record-breaking temperatures across the Northeast and Mid-Atlantic. More than 245 million people experienced daytime highs above 32 °C (90 °F), with 33 million facing extreme heat above 38 °C (100 °F) by June 24. Cities like New York and Philadelphia saw historic highs and record-warm nights, leading to heat advisories and health warnings across 2/3rd of the US states.
