The Lincoln Memorial, the Washington Monument, and the U.S. Capitol, are seen at dawn from an overlook in Arlington, Va., as Washington prepares for sweltering temperatures, Friday, July 3, 2026. (AP Photo/J. Scott Applewhite)

A trash can overflows with water at the Great American State Fair on the National Mall, Friday, July 3, 2026, in Washington. (AP Photo/Allison Robbert)

Vendors distribute ice at the Great American State Fair on the National Mall, Friday, July 3, 2026, in Washington. (AP Photo/Allison Robbert)

People sit after they were evacuated from the National Mall ahead of severe weather at an Independence Day event and fireworks honoring the nation's 250th anniversary, Saturday, July 4, 2026, in Washington. (AP Photo/Julia Demaree Nikhinson)

People take cover in the Ronald Reagan Federal Building after evacuating the National Mall due to weather while attending Independence Day events honoring the nation's 250th anniversary, Saturday, July 4, 2026, in Washington. (AP Photo/Pablo Martinez Monsivais)

People crowd Pennsylvania Avenue after they were evacuated from the National Mall ahead of severe weather at an Independence Day event and fireworks honoring the nation's 250th anniversary, Saturday, July 4, 2026, in Washington. (AP Photo/Julia Demaree Nikhinson)

In this photo released by Xinhua News Agency, a tourist couple brace themselves against strong wind and rain at Tanmen central fishing port in Qionghai, south China's Hainan Province on Friday, July 3, 2026, as a severe weather system was affecting the area. (Pu Xiaoxu/Xinhua via AP)

In this photo released by Xinhua News Agency, workers clear up a fallen tree along a road in Jiangping town, Dongxing of Fangchenggang, south China's Guangxi Zhuang Autonomous Region on Saturday, July 4, 2026, after a severe weather system was affecting the area. (Lu Boan/Xinhua via AP)