Highlights
- Phoenix highs will reach around 104 degrees through Sunday, with muggy conditions persisting.
- Widespread rain and thunderstorm chances spread across Arizona from Monday through Thursday.
- The National Weather Service Phoenix office notes temperatures will gradually cool through early next week.
- Scottsdale-area residents should plan for a weather pattern shift beginning Monday morning.
Phoenix will hold near 104 degrees through Sunday with muggy conditions, FOX 10 meteorologist Erica Horvatin reported Sunday. The heat breaks early next week as widespread rain and thunderstorm chances spread across Arizona from Monday through Thursday.
The National Weather Service Phoenix office confirmed the pattern shift, noting temperatures will gradually cool through early next week and that better moisture over south-central Arizona will support storm development off higher terrain.
Maricopa County's weather outlook and AZFamily's First Alert Weather both corroborate the Monday-through-Thursday rain window.
Monday marks the start of the rain window.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- Fox 10 Phoenix retrieved 13/09/2026 01:39
- weather.gov retrieved 13/09/2026 01:39
- Maricopa County retrieved 13/09/2026 01:39
- AZ Family (3TV/CBS5) retrieved 13/09/2026 01:39
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 13/09/2026 01:39. Every claim traces to a source.
