TUCSON, Ariz. (13 News) – Isolated to scattered storm chances return Saturday and Sunday, so keep an eye on the radar for any pop-up activity during the afternoon and evening hours. Brief heavy rain, gusty winds, and lightning are possible. Drier conditions move into southern Arizona Labor Day through next workweek. High temperatures will run a few degrees above normal, topping out in the upper 90s and lower end of the triple digits in Tucson.