Highlights

An extreme heat warning covers Phoenix and the far southwestern corner of Arizona through at least Wednesday, even as monsoon moisture brought morning rain to the Valley, FOX 10 meteorologist Krystal Ortiz reported Tuesday.

The National Weather Service Phoenix office extended the warning for the Phoenix metro, the Lower Colorado River Valley, and the Imperial Valley through Wednesday, with even hotter temperatures forecast for late this week and into next week. Storm chances through the majority of the week will be confined to Arizona's High Country terrain, the NWS said.

Morning conditions included rain showers, with some sunshine expected during the afternoon hours and a high of 106 degrees Fahrenheit, according to FOX Weather. AZFamily reported showers and thunderstorms were possible through the morning hours in the Valley, with warm and humid conditions in the 90s climbing toward 110 degrees.

KTAR and ABC15 both reported the extreme heat warning is expected to persist through the week. Residents should monitor NWS updates as temperatures are forecast to intensify through the coming days.

Sources

Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.

  1. Fox 10 Phoenix retrieved 28/07/2026 15:17
  2. weather.gov retrieved 28/07/2026 15:17
  3. foxweather.com retrieved 28/07/2026 15:17
  4. AZ Family (3TV/CBS5) retrieved 28/07/2026 15:17
  5. ktar.com retrieved 28/07/2026 15:17
  6. ABC15 Arizona retrieved 28/07/2026 15:17

Authored by The Scottsdale Signal. Drafted by AI from primary-source material under our beat-specific editorial guides; reviewed by humans before publish under our five-gate process. Sources retrieved at 28/07/2026 15:17. Every claim traces to a source.