Sunday is coming in mostly clear and already warm, and Phoenix is set to crank back into the upper 100s with a high near 109°F. Overnight will not offer much of a break, with muggy lows stuck in the mid-80s. Rain chances stay slim, limited to a few isolated showers over the foothills. West-southwest breezes will kick up in the afternoon with occasional gusts, so if you are planning yard work, practice, or an evening outing, build in water breaks, find shade, and check on neighbors who are more vulnerable to the heat.
Afternoon Heat And Spotty Storms
Temperatures will run about 3-8 degrees above normal through midweek, putting most of the Valley under a Moderate Heat Risk with a few pockets of Major Heat Risk. Highs should reach around 109°F on Sunday, with similar triple-digit readings Monday and Tuesday. Most thunderstorms are expected to stay over higher terrain and the foothills, though any storm that drifts into the Valley could bring brief lightning and gusty outflow winds. For the official forecast and heat safety tips, check the National Weather Service in Phoenix.
Evening Wind Shifts And Blowing Dust
Daytime winds should stay light to moderate around 5-10 mph, but outflows from mountain storms could flip the script this evening. Between roughly 6 and 9 p.m., sudden northerly gusts may briefly peak around 25-30 mph. Those quick wind shifts can kick up localized blowing dust and could slow the evening commute or cause minor disruptions for flights into Sky Harbor. Tie down loose patio furniture, keep pets indoors during the hottest part of the day, and give yourself extra travel time after sunset.
Where To Cool Off In The Valley
Heat-relief sites are open across the Valley. Phoenix is operating a 24/7 respite site downtown at 20 W Jackson St and offering extended-hours cooling with partners such as the Justa Center at 1001 W Jefferson St. If you need a ride to a cooling location, you can call 2-1-1, and the city keeps an updated list of cooling centers and hydration stations online. Visit the City of Phoenix cooling centers page for locations, hours, and available resources.
