Highlights
- Phoenix temperatures are forecast to reach 113 degrees Saturday, 8 degrees above the seasonal average of 105.
- A First Alert Weather advisory covers Saturday and Sunday, with Sunday highs expected around 112 degrees.
- Monsoonal moisture surges starting Sunday afternoon, bringing storm chances through Thursday of next week.
- The Valley is running below average on monsoon rainfall so far this season, according to AZFamily meteorologist Paul Horton.
Phoenix is on track to hit 113 degrees Saturday, eight degrees above the seasonal average of 105, with a First Alert Weather advisory in effect through Sunday, AZFamily meteorologist Paul Horton reported Saturday morning.
Sunday temperatures are expected to come in around 112 degrees. Afternoon storm development is possible in the high country Saturday, with outflows capable of pushing blowing dust into the Valley.
Starting Sunday afternoon, a surge of monsoonal moisture will increase thunderstorm chances through Thursday of next week. Horton noted the Valley is currently running below average on monsoon rainfall for the season.
Storm chances persist daily through Thursday, per the forecast.
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 08/08/2026 15:15
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 08/08/2026 15:15. Every claim traces to a source.
