Phoenix Sizzles Into August: Extreme Heat Warning Stays in Place

Current Conditions in Phoenix

July is wrapping up with a bang in the Valley. On July 31, Phoenix recorded a blistering 111°F, and the temperature didn’t let up much after that. An Extreme Heat Warning is still hanging over the city, meaning anyone stepping outside should take extra care.

The heat isn’t the only thing on the radar. Across eastern and southern parts of Arizona, humidity is edging higher, making the air feel even stickier than usual. Even though the moisture increase is modest, it does lift the odds of showers a little – but don’t count on rain to cool things down. In Phoenix itself, the chance of a shower sits at about 10‑20%, and any drops would most likely show up late in the day or after sunset.

Higher ground in northern Arizona may see a few scattered storms, and when they do form, they can stir up gusty winds and dust, especially around Pinal County. For most folks in the metropolitan area, though, the day will stay dry and brutally hot.

What’s Ahead This Weekend and Beyond

Looking ahead, the forecast isn’t any kinder. Temperatures are set to climb to the 112‑113°F range from Friday through Sunday. The Extreme Heat Warning, which started Friday at 10 a.m., is slated to run until at least 8 p.m. Saturday. Areas farther south and places like the Grand Canyon below 4,000 feet may stay under the warning through Sunday.

If the heat proves stubborn – which it likely will – officials may extend the warning into the following week. Model runs suggest highs could reach 112‑116°F by mid‑next week, and the dry air will keep humidity low, so the heat feels even more intense.

Health experts warn that prolonged exposure to these temperatures can lead to heat exhaustion, heatstroke, and dehydration. They recommend staying indoors during peak heat hours, drinking plenty of water, and checking on vulnerable neighbors, especially the elderly and those with chronic illnesses.

For anyone planning outdoor activities, the best bet is to schedule them early in the morning or after sunset, when the mercury finally dips below the mid‑90s. Even then, wearing lightweight, light‑colored clothing and applying sunscreen are must‑dos.

Businesses that rely on outdoor labor – construction crews, landscaping teams, and delivery drivers – are being urged to adjust schedules and provide extra water breaks. Some schools have already announced heat‑related closures for Friday, and the trend may continue if the warning is extended.

Travelers passing through Phoenix should also be aware that the airport’s outdoor walkways can become dangerously hot. Airport staff have placed additional water stations and are advising passengers to limit time spent in open areas.

Despite the oppressive heat, the city’s air conditioning infrastructure is holding up. Power utilities are on alert, ready to respond to any spikes in demand that could strain the grid. Residents are reminded to conserve energy where possible to avoid rolling blackouts.

All signs point to another scorching stretch for Arizona’s most populous region. Whether you’re a local, a visitor, or someone watching from afar, the only safe move right now is to respect the heat, stay hydrated, and keep an eye on the next weather update.