Beaches in Toronto are packed as people find ways to embrace temperatures up to 36 degrees Celsius on Monday June 23, 2025. THE CANADIAN PRESS/Frank Gunn
A Montrealer named Sheila enjoys the sun in Lafontaine Park as Environment Canada issues a heat warning for the Greater Montreal area, with humidex values in the low to mid forties on Monday, June 23, 2025. THE CANADIAN PRESS/Christinne Muschi
Miguel Roque from Portugal escapes the humidity by reading in the shade of Lafontaine Park as Environment Canada issues a heat warning for the Greater Montreal area, with humidex values in the low to mid forties on Monday, June 23, 2025. THE CANADIAN PRESS/Christinne Muschi
A young girl plays in a fountain in the Montreal borough of Lachine as Environment Canada issues a heat warning for the Greater Montreal area, with humidex values in the low to mid forties on Monday, June 23, 2025. THE CANADIAN PRESS/Christinne Muschi
Beaches in Toronto are packed as people find ways to embrace temperatures up to 36 degrees Celsius on Monday June 23, 2025. THE CANADIAN PRESS/Frank Gunn
Skateboarders Anthony Eadens and Tommy Wright catch their breath after skating at the Dave Armstrong Extreme Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
Jude Puroway, right, and Bay Puro cool off at a fountain during hot weather in Chicago, Sunday, June 22, 2025. (AP Photo/Nam Y. Huh) (Nam Y. Huh/AP)
A child covers his face while a stream of water pours down at Waterfront Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
Working before the temperature hits 100 degrees today, Jeffrey Adcock cleans the reflecting pool in Lower Senate Park at the Capitol in Washington, Tuesday, June 24, 2025. (AP Photo/J. Scott Applewhite) (J. Scott Applewhite/AP)
Ronan Miller, seven, drinks melted ice while standing in front of a mister to cool off during hot weather before a baseball game between the Baltimore Orioles and the Texas Rangers, Monday, June 23, 2025, in Baltimore. (AP Photo/Stephanie Scarbrough) (Stephanie Scarbrough/AP)
People exercise on the Brooklyn waterfront during a heatwave on Tuesday, June 24, 2025, in New York. (AP Photo/Olga Fedorova) (Olga Fedorova/AP)
Children run through water sprayed by a fire truck to cool off outside Busch Stadium before the start of a baseball game between the St. Louis Cardinals and the Cincinnati Reds Sunday, June 22, 2025, in St. Louis. (AP Photo/Jeff Roberson) (Jeff Roberson/AP)
People relax in Rehoboth Beach, Del., despite a heat advisory warning from the National Weather Service on Sunday, June 22, 2025. (AP Photo/Mingson Lau) (Minson Lau/AP)
Lucy Stamp throws a frisbee while her dog, Kenna, retrieves it as they cool down in the West River on Monday, June 23, 2025, in Dummerston, Vt. (Kristopher Radder/The Brattleboro Reformer via AP) (Kristopher Radder/AP)
McKenna Jones, left, Kacey Wood, Tristan Smith, and Ben King, employees at the Splash Pad at Lake Stephens in Surveyor, W.Va., get cooled down during some extreme heat Monday afternoon, June 23, 2025. (Rick Barbero/The Register-Herald via AP)
Beach goers crowd a public beach on the Lake Michigan shore, Sunday, June 22, 2025, in Chicago. (AP Photo/Kiichiro Sato) (Kiichiro Sato/AP)
Carolina Garlena, 5, of Ogletown, Pa., cools off in the water at Quemahoning Family Recreation Park in Hollsopple, Pa., Monday, June 23, 2025. (Thomas Slusser/The Tribune-Democrat via AP) (Thomas Slusser/AP)
Beach goers crowd a public beach on the Lake Michigan shore, Sunday, June 22, 2025, in Chicago. (AP Photo/Kiichiro Sato) (Kiichiro Sato/AP)
A child covers his face while a stream of water pours down at Waterfront Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
Lucy Stamp and her dog, Kenna, cool down under the Dummerston Covered Bridge in the West River, Monday, June 23, 2025, in Dummerston, Vt. (Kristopher Radder/The Brattleboro Reformer via AP) (Kristopher Radder/AP)
Poeple walk across the Big Four Bridge as the sun sets at Waterfront Park on Sunday, June 22, 2025, in Louisville, Ky. (AP Photo/Jon Cherry) (Jon Cherry/AP)
