Phoenix is waking up to clear skies and an already-warm morning Friday, with temperatures near 91 degrees around sunrise. The bigger story is the stretch ahead: an Extreme Heat Warning remains in place for the metro area through 8 p.m. Friday, August 28, with highs from 110 to 113 degrees and overnight lows refusing to dip below the upper 80s.
Friday Peaks At 111 Degrees
Friday will be sunny and dangerously hot, with a high near 111 degrees and heat-index values reaching about the same level. Winds will stay light from the south-southeast early, then turn west during the afternoon at around 5 mph, while the chance of rain remains near zero.
Saturday looks even hotter, with sunny skies and a high near 112 degrees. The overnight low will only fall to about 91 degrees, making for another unusually warm night across the Valley.
Little Relief Through Next Week
Sunday and Monday will remain mostly sunny with highs around 110 degrees, followed by another climb to 112 degrees Tuesday. Wednesday could be the hottest day in the current forecast at 113 degrees, with Thursday still near 112.
Overnight temperatures will hover between 89 and 91 degrees through much of the week. That limited nighttime cooling can make it harder for homes, people, pets and outdoor workers to recover from the afternoon heat.
Rain Stays Mostly Out Of Phoenix
There is no meaningful rain in the forecast for the lower desert through Thursday. The National Weather Service expects isolated thunderstorms to remain mainly in higher terrain through at least Saturday, with only a small chance that an outflow boundary reaches Phoenix before weakening.
Heat Safety Remains Essential
The National Weather Service advises residents to limit strenuous outdoor activity, drink plenty of water and take frequent breaks in shade or air conditioning. Heat stroke is an emergency, and anyone showing signs of severe heat illness should be moved to a cool place and receive immediate medical help.
People who need a cooler place to spend the day can call 2-1-1 to find free cooling centers, water and transportation assistance, according to Maricopa County. The county's heat-relief resources are available during the summer season, but with triple-digit afternoons and near-90-degree nights ahead, planning early is the safer bet.
