Attendees dip their hands in ice water at the Great American State Fair on the National Mall, Friday, July 3, 2026, in Washington. (AP Photo/Allison Robbert)

Egypt players hydrate and cool down as the weather nears triple digits during a training session in Dallas, Thursday, July 2, 2026, ahead of the team's World Cup soccer match against Australia. (AP Photo/Tony Gutierrez)

Meghana Jalagam uses a fan to keep cool from the hot weather during a World Cup soccer match between the United States and Bosnia and Herzegovina at a watch party Wednesday, July 1, 2026, in Detroit. (AP Photo/Paul Sancya)

The Lincoln Memorial, Washington Monument, and U.S. Capitol are seen at dawn as joggers run past an overlook in Arlington, Va., Friday, July 3, 2026. (AP Photo/J. Scott Applewhite)

Runners wearing Independence Day-themed items jog at dawn past an overlook in Arlington, Va., as Washington prepares for sweltering temperatures, Friday, July 3, 2026. (AP Photo/J. Scott Applewhite)

A member of the Texas State Troopers pours cold water over his head during an extreme head advisory near the Lincoln Memorial, while providing extra security ahead of the America 250 July 4th celebration, Thursday, July 2, 2026, in Washington. (AP Photo/Nathan Howard)

Visitors react to the heat while attending the Great American State Fair on the National Mall, Wednesday, July 1, 2026, in Washington. (AP Photo/Nathan Howard)

Zookeeper Brooke Cannon feeds Nigerian dwarf goats frozen pellets at the Franklin Park Zoo in Boston, Thursday, July 2, 2026, to help them cope with the hot conditions. (AP Photo/Michael Casey)