Highlights
- Phoenix temperatures have exceeded 113°F during an ongoing heat wave driven by high pressure over the Desert Southwest.
- First Alert Weather Days are in effect through Sunday, with highs of 110 degrees or hotter forecast across the Valley.
- 12News reported Phoenix hit a record 117 degrees on a recent Friday, with rising humidity compounding the danger.
- Slight storm chances are ahead, but sustained relief has not yet arrived.
An entrenched high-pressure system is keeping Phoenix temperatures above 110 degrees this week, with FOX 10 Phoenix reporting highs reaching 113°F as the heat wave continues across the Valley.
The National Weather Service Phoenix office warned that strong high pressure over the Desert Southwest would produce temperatures running 5 to 7 degrees above average, with Major HeatRisk conditions across lower elevations. AZFamily reported that First Alert Weather Days are in effect through Sunday, with highs of 110 degrees or hotter expected to persist.
The current stretch follows a period of even more extreme readings. 12News reported that Phoenix hit a record 117 degrees on a recent Friday, with rising humidity making conditions more dangerous and prompting experts to urge hikers to take extra precautions.
FOX 10 noted slight storm chances are ahead, though no firm timeline for sustained cooling has been issued.
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 18/08/2026 15:25
- weather.gov retrieved 18/08/2026 15:25
- AZ Family (3TV/CBS5) retrieved 18/08/2026 15:25
- 12News retrieved 18/08/2026 15:25
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 18/08/2026 15:25. Every claim traces to a source.
