 Western states entering what could be a record-breaking weekend of heat. It's hot today in places like Fresno and even in the Los Angeles suburbs of Santa Clarita and elsewhere, hitting nearly 115 degrees today. But the heat is about to be turned up through most of next week. Las Vegas could break its all-time hottest temperature if it breaks 117 degrees, probably on Sunday. And then if Death Valley gets to 130 degrees next week, that'll be the hottest temperature ever reliably recorded on Earth. ABC's Alex Stone.