Highlights
- The National Weather Service issued an extreme heat warning for the Phoenix metro, with a projected high of 108 degrees Monday.
- Monday's forecast falls 2 degrees short of Phoenix's May 11 record of 110 degrees, set in 1934.
- The warning period runs 10 a.m. Sunday through 8 p.m. Monday, closing hiking trails at Camelback, Piestewa Peak and South Mountain.
- The Valley's Heat Relief Network, which launched May 1, provides free cool spaces during the warning period.
The National Weather Service has issued an extreme heat warning for the Phoenix metro area, with temperatures forecast to peak at 108 degrees Monday, 2 degrees below the May 11 record of 110 degrees set in 1934. NWS Phoenix meteorologist Alicia Ryan told KTAR News 92.3 FM on Friday morning that the heat will build through the weekend: 101 degrees Friday, 104 Saturday, 106 Sunday, then 108 Monday. Overnight lows will hold in the 70s throughout. Ryan noted the normal high for this time of year is 92 or 93 degrees. The warning runs from 10 a.m. Sunday through 8 p.m. Monday. Under city policy, extreme heat warnings trigger daytime closures of hiking trails at Camelback Mountain, Piestewa Peak and South Mountain. Ryan recommended staying hydrated, wearing light clothing, remaining indoors with air conditioning when possible, and taking breaks in the shade for anyone working outside. The Valley's seasonal Heat Relief Network launched May 1, providing free cool spaces and other resources through the hottest months. The warning period begins Sunday at 10 a.m.
Sources
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- ktar.com retrieved 2026-05-08T19:33:30.956565+00:00
Authored by The Scottsdale Signal. Drafted by AI from primary-source material under our beat-specific editorial guides; reviewed by humans before publish under our five-gate process. Sources retrieved at 2026-05-08T19:33:30.956565+00:00. Every claim traces to a source.
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