NWS Forecast Office Phoenix, AZ

Strong high pressure will build across the region heading towards the latter half of the week, reaching near record strength next week. Temperatures across the lower deserts will rapidly heat up into the 90s by the end of the week but then increase even further into the triple digits as we head into the middle of next week. Not only will all-time record March temperatures likely be broken but also the earliest occurrence of 100 degrees in Phoenix.