NWS Forecast Office Phoenix, AZ

Afternoon highs across the lower deserts will be several degrees above daily normals through the weekend. Overnight lows in the 80s and lower 90s will be common, resulting in little relief. Areas of major HeatRisk will continue with Extreme Heat Warnings remaining in effect through Sunday.

Daily thunderstorm activity is expected to continue into early next week across the AZ higher terrain in N, E, and SE AZ. Thunderstorm activity across the lower deserts will be limited (< 20% chance). However, strong gusty outflow winds will still be possible and could cause some areas of blowing dust. Temperatures several degrees above normal will continue into next week with areas of Major to Extreme HeatRisk across much of the lower deserts. An Extreme Heat Warning remains in effect through Friday August 28th.