With more than 100 million Americans from Arizona to Massachusetts under heat alerts and a heatwave for most of the Eastern U.S. beginning early next week, Lee Goldberg has the forecast; Ian Pannell has the latest on the Israel-Iran conflict as both countries exchange fierce new strikes and European leaders meet with Iranian diplomats in Geneva; Aaron Katersky has details on Columbia University graduate and green card holder Mahmoud Khalil being granted release from a Louisiana immigration jail more than 3 months after his arrest; and more on tonight's broadcast of World News Tonight with David Muir.

Ian Pannell reports from Tel Aviv as the Pentagon reveals new details about the stunning attack on three Iranian nuclear sites during an Operation called "Midnight Hammer"; Mary Bruce from the White House on Pres. Trump touting the mission's success while urging Iran to make peace; Martha Raddatz reports on the more than 40,000 U.S troops on high alert as questions arise over how much damage was done to Iran's nuclear program; Pierre Thomas has the latest on the U.S. stepping up its security presence in cities across America following the strikes; and more on tonight's broadcast of World News Tonight with David Muir.