Phoenix is starting Tuesday near 90 degrees under clear skies, but the morning calm will give way to another dangerous blast of desert heat. The high is expected to reach 111 degrees this afternoon, with little relief overnight as temperatures dip only to around 90.
An Extreme Heat Warning remains in effect for the Phoenix metro area through 8 p.m. Friday. The National Weather Service says afternoon temperatures will run from 108 to 112 degrees, creating major heat risk across the lower desert.
More Triple-Digit Heat Through The Weekend
Wednesday should reach 109 degrees, followed by another 109-degree afternoon Thursday and a high near 110 on Friday. Saturday is also expected to hit 110, while Sunday may cool slightly to 108 before temperatures ease further to about 106 on Monday.
Overnight lows will remain stuck in the upper 80s to around 90 through the weekend, limiting the amount of recovery available after sunset. Winds should generally stay light, near 5 mph, though shifting winds could become gusty around any thunderstorms.
Storm Chances Return Late This Week
Tuesday should stay sunny and dry, but a slight chance of showers and thunderstorms arrives after 5 p.m. Thursday. Similar low-end storm chances continue Friday through Sunday, mainly during the late afternoon and evening hours.
Rain is not expected to be widespread, but any storm that develops could bring a quick downpour, lightning and erratic winds. Outdoor plans should include a way to get indoors quickly, especially during the hottest part of the day.
Heat Safety Remains The Main Concern
The warning means heat-related illness can develop quickly, particularly for outdoor workers, older adults, young children and anyone without reliable air conditioning. Reschedule strenuous activity for early morning or evening, drink water regularly and never leave people or pets in a parked vehicle.
Residents who need a cool place, water or transportation assistance can call 2-1-1, which Maricopa County lists as a way to locate local heat-relief services. Anyone showing signs of heat stroke should be moved to a cool place and treated as a medical emergency by calling 911.
