Extreme Heat Warning Issued for Phoenix Metro Area and Southwestern Arizona
An Extreme Heat Warning has been issued for the Phoenix metro area and southwestern Arizona, effective from 10 a.m. Tuesday to 8 p.m. Thursday (Source time: Tue, 08 Sep 2026 04:58:45 GMT). High pressure over Arizona is driving temperatures to dangerous levels, with daytime highs expected to reach up to 110°F (43°C) and overnight lows remaining in the mid to upper 80s (29-31°C). The National Weather Service has declared Tuesday, Wednesday, and Thursday as ABC15 Weather Action Days to emphasize the need for safety during this heatwave. While monsoon moisture is expected to return later in the week, bringing a slight chance of storms by Thursday, the current conditions pose a significant risk for heat-related illnesses. 
