Spring is feeling a lot like summer in Phoenix this Friday, May 1, 2026. Clear skies and comfortable low‑80s at midday are setting the stage for a toasty afternoon, with temperatures expected to top out near 91°F by late day. The warmup does not stop there. Forecast highs climb into the mid‑90s on Saturday, May 2, and push into the upper‑90s by Sunday, May 3, when gusty winds start to muscle into the picture.
Sunday Winds and Fire Weather
A Pacific low sliding down the California coast is set to tighten the pressure gradient and kick up breezy to locally windy conditions on Sunday afternoon into early evening. Stronger spots could see gusts in the 25 to 35 mph range. Paired with dry afternoon humidity, those winds could bring elevated to near‑critical fire weather across the Lower Colorado River Valley and La Paz County, according to the National Weather Service.
Afternoon Heat and Weekend Warm‑Up
Plan on dry, sun‑soaked afternoons with relative humidity dropping into the teens, so it will feel hot without any swampy monsoon stickiness. Highs are projected to reach around 95°F on Saturday and near 97°F on Sunday. Outdoor plans will be far more comfortable in the morning, before the heat really settles in. Overnight lows stay on the mild side, generally holding in the mid‑60s to low‑70s.
Cooling Centers and What To Do
The City of Phoenix flips the switch on its Heat Relief Network on May 1, opening cooling centers, hydration stations and extended‑hour sites across the city. If you need transportation to a cooling center, you can call 2‑1‑1 for a ride, with more details available from the City of Phoenix. Outdoor workers and event organizers are urged to secure loose items ahead of Sunday’s gusts, keep water handy, and shift heavy work or strenuous activities to the cooler morning hours.
