DC Cancels 250th Anniversary Parade as Heat Index Hits 110-115°F

The National Park Service canceled Washington's marquee Independence Day parade on July 4, 2026—the semiquincentennial—after the National Weather Service issued an extreme heat warning. Forecasters projected heat index values of 110–115°F. The decision came late on July 3, less than twelve hours before the 10:30 a.m. start. Organizers consulted with DC's government and the Trump administration. A nearby state fair had already closed July 3 after 44 visitors sought treatment for heat-related illness.