Pull out the sweatshirts, Southern Utah! The US National Weather Service in Salt Lake City is predicting a cooldown to be coming to Utah next week. This cooldown has targeted Utah, but will also hit parts of Idaho, Wyoming, Montana, Nevada, and Arizona. Nearly ALL of Utah will be experiencing cooler temperatures starting this upcoming Tuesday, the 17th. Usually temperatures in Southern Utah start dropping around the 20th of September, but NEVER this much of a drop!