Drier air will filter in from the northwest through the weekend and into next week as high pressure builds back in and strengthens from the west. This should result in decreasing coverage of thunderstorms this weekend, with the best chance over the southern portions of the forecast area. Temperatures will warm to above normal levels as a result of the drying trend. Moisture looks to return to the area by Wednesday as the high pressure ridge shifts east of the divide, signaling the return of monsoonal moisture.   (Please visit http://weather.gov/gjt for more information.)