Phoenix woke up to clear skies and a mild start on Tuesday, March 24, 2026, but that pleasant morning is not sticking around. By this afternoon, temperatures are expected to soar to about 98°F and then push solidly into triple digits through the middle of the week. Officials warn the stretch of unseasonably hot weather could be dangerous for people doing strenuous outdoor work and for anyone without reliable air conditioning.
What To Expect
Forecasts call for a high near 98°F on Tuesday, roughly 100°F on Wednesday, around 101°F on Thursday, and about 102°F on Friday, with overnight lows holding in the mid to upper 60s. Rain is basically off the table through Thursday, with precipitation chances near zero. A slight chance of spotty showers or an isolated thunderstorm creeps in late Sunday into Monday. The National Weather Service notes that daily record highs are possible and that this run of record-challenging days could roll on through the week.
Danger And Impacts
Very dry afternoons, often with humidity sinking into the single digits or teens, will make heat-related illnesses more likely and could bump up fire danger in some spots. Winds should stay on the lighter side most days, but gusts could kick up in places, especially on Saturday when speeds as high as 25 mph are possible. That could make yard work, construction, and trail hikes feel tougher than usual. Expect some event organizers to push activities later into the day and to add shaded areas, water stations, and cooling options for people attending.
Where To Cool Off
The City of Phoenix is running cooling and respite sites across the area, including a 24/7 respite location at 20 W. Jackson Street, along with partnerships with groups such as Justa Center at 1001 W. Jefferson St. to provide extended hours and hydration services, according to the City of Phoenix. If your air conditioning is unreliable or you do not have it at home, plan to spend the peak heat hours at a cooling center and check local hours before you head out.
Looking Ahead
By the end of the weekend, the upper-level ridge is expected to shift east, which should bring more cloud cover and slightly cooler daytime temperatures. Even so, readings will likely stay above normal into early next week. Any showers or storms late Sunday into Monday are expected to be hit or miss rather than widespread. Keep an eye on updated forecasts and try to schedule outdoor plans for the morning or evening when conditions are less extreme.
Heat Safety
Stay on top of the basics: drink water frequently, avoid heavy exertion during the afternoon, check on neighbors and pets, and never leave people or animals in parked vehicles. If you need help finding cooling locations near you, call the city or search for the Heat Relief Network online.
