Phoenix Faces Extended Heat Wave as Extreme Heat Warning Continues

Phoenix, Arizona - Phoenix and surrounding Valley communities are facing another stretch of dangerous heat as the National Weather Service continues an Extreme Heat Warning for the metro area.

The warning covers much of the Phoenix area, including Phoenix, Mesa, Tempe, Chandler, Gilbert, Scottsdale, Glendale, Peoria, Surprise, Goodyear, Avondale and Queen Creek. According to the National Weather Service in Phoenix, afternoon temperatures are expected to remain well above normal, generally ranging from 108 to 114 degrees in lower desert communities.

The warning is in effect through 8 p.m. MST Friday, August 28, with areas of major to extreme HeatRisk expected. Overnight temperatures are also forecast to stay unusually warm, with lows in the 80s and lower 90s in many areas, giving residents little relief after sunset.

The National Weather Service said heat-related illnesses can increase significantly during extreme heat events. Overexposure can lead to heat cramps and heat exhaustion and, without quick action, may progress to heat stroke.

The extended heat comes during a period of strong high pressure over the Southwest. Forecasters said temperatures could run 5 to 10 degrees above normal through the week across much of the lower desert region.

For Arizona families, seniors, outdoor workers and people without reliable air conditioning, the risk can be serious. Residents are urged to drink water frequently, avoid strenuous outdoor activity during peak afternoon heat, check on elderly relatives and neighbors, and never leave children or pets inside parked vehicles.

People who must work outside should take frequent breaks in shade or air conditioning and watch for signs of heat illness, including dizziness, heavy sweating, nausea, confusion, weakness or rapid heartbeat. Anyone showing signs of heat stroke should receive emergency medical attention immediately.

Maricopa County residents can call 2-1-1 to find cooling centers, hydration stations and other heat-relief resources.

The heat wave also comes as parts of the Valley remain at risk for gusty winds, blowing dust and isolated thunderstorms, especially when storm outflows move into the lower deserts. Drivers should remain alert for sudden drops in visibility during dust events.

As the extreme heat continues, local officials and health agencies are reminding residents that heat safety is not only a daytime concern. Warm nights can make it harder for the body to recover, especially for older adults, people with health conditions and those living without adequate cooling.