Highlights
- An Extreme Heat Warning is in effect from 10 a.m. Monday through 8 p.m. Friday across the Phoenix area.
- Afternoon highs are forecast at 111 degrees Monday, potentially climbing to 112 if weekend rain does not materialize.
- All five weekdays carry First Alert Weather Day designations; gusty outflow winds and blowing dust are possible each evening.
- A slight monsoon chance arrives mid-to-late week and could bring cooler temperatures and early cancellation of the warning.
An Extreme Heat Warning is in effect across the Phoenix area from 10 a.m. Monday through 8 p.m. Friday, with an afternoon high of 111 degrees forecast under sunny skies, Arizona's Family meteorologist April Warnecke reported. The National Weather Service Phoenix office confirmed Extreme Heat Warnings are in effect for much of the area through Friday.
All five weekdays carry First Alert Weather Day designations. Residents should stay hydrated, limit outdoor activity during peak afternoon hours, and check on neighbors who may be vulnerable to extreme heat, according to the forecast.
Gusty outflow winds and blowing dust are possible over the Valley each of the next couple of evenings. Storm chances through Wednesday remain confined to higher elevations.
The warning's duration depends on monsoon activity. A slight chance for storms arrives in the Valley by the second half of the week and into the weekend. If rain materializes, temperatures could drop and the Heat Warning could be canceled early. If it does not, the warning may extend into the weekend with highs near 112 degrees.
The NWS Phoenix office is the authoritative source for any changes to warning status; the First Alert Weather App carries real-time radar and rainfall totals.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- AZ Family (3TV/CBS5) retrieved 17/08/2026 12:55
- weather.gov retrieved 17/08/2026 12:55
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 17/08/2026 12:55. Every claim traces to a source.
