National Park Service Cancels DC's 250th Anniversary Parade as Extreme Heat Forces Last-Minute Call

The National Park Service canceled Washington's Independence Day parade on July 4, 2026—marking the nation's semiquincentennial—after the National Weather Service issued an extreme heat warning. The heat index was projected to reach 110–115°F. Organizers made the decision late July 3, less than twelve hours before the 10:30 a.m. start, consulting with DC officials and the Trump administration. A state fair nearby had already shut down after 44 visitors required treatment for heat-related illness.