Phoenix is waking up under an Extreme Heat Warning on Monday, July 27, 2026, with afternoon highs expected to push near 1100F and heat-index readings that could feel closer to 1130F. Overnight lows will only slip into the low 90s, which means almost no break from the heat for anyone without reliable air conditioning. The warning is in effect for the Phoenix metro area and nearby lower-desert communities through Wednesday evening, July 29, 2026.
What To Expect
Residents should plan for a multi-day run of triple-digit afternoons. Monday is forecast to top out around 1100F, Tuesday brings a slight dip to about 1090F, then temperatures are set to climb again into the low-to-mid 110s by late week, with a potential high near 1150F on Friday.
There is a small chance of isolated showers or thunderstorms in the early morning hours Tuesday, but any rain is expected to be light and unlikely to provide meaningful cooling. Winds will blow generally from the west to southwest at roughly 5 to 10 mph, with occasional stronger gusts in the evening.
Cooling Options And Help
For anyone who needs a break from the heat, public cooling centers and hydration stations are open across the city. According to the City of Phoenix, these spots offer free, air-conditioned space where people can cool down safely.
For more context on how this stretch of heat is affecting the region, check out this earlier look at how the Valley turned into an oven. Residents who need transportation or other assistance to reach relief locations can call 2-1-1 to connect with regional heat-relief options.
Stay Safe
Health officials urge basic but serious precautions. Avoid strenuous outdoor activity between about 10 a.m. and 5 p.m., drink plenty of water throughout the day, and seek air-conditioned shelter if you start to feel dizzy, nauseous, or unusually weak.
Check in on older neighbors, infants, and anyone with health vulnerabilities, and remember that parked vehicles heat up dangerously fast. Never leave children or pets in a car, even for a short errand.
If someone shows potential signs of heat stroke - confusion, fainting, or loss of consciousness - call 9-1-1 immediately.
