Kim Kelley tries to cool off from hot weather in Dodge Fountain at Hart Plaza in Detroit, Tuesday, June 30, 2026. (AP Photo/Paul Sancya)

Children play at a water sprayground in Des Moines, Iowa, Monday, June 29, 2026. (AP Photo/Hannah Fingerhut)

Toni Kreutzer gives her 13-year-old dog Chester a drink of water during a break in a walk as temperatures approach 90 degrees on Monday, June 29, 2026, in Madison, Wis. (AP Photo/Scott Bauer)

Children play at a water sprayground in Des Moines, Iowa, Monday, June 29, 2026. (AP Photo/Hannah Fingerhut)

A jogger runs on the street during a hot weather day in Mount Prospect, Ill., Monday, June 29, 2026. (AP Photo/Nam Y. Huh)

Children play at a water sprayground in Des Moines, Iowa, Monday, June 29, 2026. (AP Photo/Hannah Fingerhut)

FILE - A Japan soccer fan wipes his brow while standing in the heat in downtown Dallas, June 24, 2026. (AP Photo/LM Otero, File)

Drivers maneuver their vehicles through high water flooding West Parrish Avenue after a heavy rainfall, Saturday, June 27, 2026, in Owensboro, Ky. (Greg Eans/The Messenger-Inquirer via AP)