 Arizona News Radio, there is no relief from the heat this week as the National Weather Service extends our excessive heat warning through Thursday. There could be some relief in the weekend, though, with chances of rain in the forecast beginning Friday night. With temperatures hitting as high as 118 degrees over the next few days, it's a dangerous time for the homeless. Austin Davis is with the group AZ Hugs. He says it's bad out there. Everyone we're encountering in heat crisis, trying to set up little mobile cooling stations where people are gathered.