Highlights
- An Extreme Heat Warning remains in effect through Friday, with First Alert Days declared through Sunday.
- Tuesday is expected to mark the 30th day this year Phoenix has hit 110°F or higher.
- Overnight lows will stay near 90°F through the weekend, offering little relief.
- A slight chance of rain arrives Thursday evening, with rising humidity pushing dew points into the upper 50s and 60s.
Phoenix is on track to record its 30th day at or above 110°F this year as an Extreme Heat Warning remains in effect through Friday, Arizona's Family meteorologist Pete Mangione reported Tuesday morning.
Afternoon highs will range between 110°F and 112°F through the weekend. Overnight lows will stay near 90°F, compressing the window for any meaningful cool-down. Temperatures may ease to around 107°F by Monday, though rising humidity will push dew points into the upper 50s and 60s from Wednesday through the end of the week, according to Mangione.
The National Weather Service Phoenix office confirmed an Extreme Heat Warning for much of central Arizona through Friday evening, citing temperatures running 5 to 7 degrees above average under strong high pressure over the Desert Southwest.
For the Valley, gusty outflow winds are possible Wednesday evening, followed by a slight chance of rain Thursday evening into the overnight hours. Southeast Arizona will see isolated storms today; storm activity in the high country increases starting Wednesday and continues through the weekend.
First Alert Days are in effect through Sunday. Residents should download the First Alert Weather App for 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 18/08/2026 12:55
- weather.gov retrieved 18/08/2026 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 18/08/2026 12:55. Every claim traces to a source.
