NWS Forecast Office Phoenix, AZ

High pressure and warm southwest flow will keep temperatures several degrees above normal through midweek, with afternoon highs around 5-10 degrees above normal. The well-above normal afternoon highs will result in a Minor HeatRisk across the lower deserts today. An unsettled weather pattern will develop by week with a series weather systems expected to move across the Desert Southwest, resulting in cooler temperatures and increased rain chances, especially across the AZ higher terrain, late Thursday through Friday. In between systems this weekend, temperatures warm back up.