27 August 2023

Phoenix Forecast | Today's AQI | Unhealthy for Sensitive Groups

ISSUED ON: Sunday, August 27, 2023

View the Phoenix Hourly Forecast >


 Phoenix Air Quality Forecast Updated: 8/27/2023 - 7:35 AM 

Note: This is a temporary page for the air quality forecast while we continue to update the site. Thank you for your patience. 

Air Quality Alerts An Ozone High Pollution Advisory is in effect for Sunday 

An Ozone High Pollution Advisory is in effect for Monday 

An Ozone High Pollution Watch is in effect for Tuesday 

An Ozone High Pollution Watch is in effect for Wednesday 

An Ozone High Pollution Watch is in effect for Thursday 

The weather pattern over region will then start to change by Thursday as a low pressure wave is projected to enter the picture. This wave will push the high pressure to the east and help to establish a moisture tap from the south. More moisture means "cooler" temperatures as well as increasing thunderstorm chances. Thus, our monsoon hopes will be revived towards the end of this week. 
  • Air quality-wise, ozone will be the pollutant of interest. The high pressure will result in sunny skies and light winds, conditions conducive for ground-level ozone formation and build-up. 

Therefore, daily elevated ozone levels are expected to continue. 
  • 1) An Ozone High Pollution Advisory is in effect for today. 
  • 2) An Ozone High Pollution Advisory has been issued for Monday. 
  • 3) Ozone High Pollution Watches have been put into place for Tuesday through Thursday. In regards to PM (dust), 
  • PM will be mostly locally driven. Industrial areas south/southwest of the Phoenix metro will likely see elevated PM levels on weekday mornings. 
  • Winds from distant thunderstorms may also cause briefly elevated PM levels in the evenings/nights.
?? Check back tomorrow for the next Phoenix Air Quality Forecast! 

Hourly Ozone Forecast Concentrations Hourly 

PM (Dust) Forecast Concentrations Hourly 

PM (Smoke) Forecast Concentrations Air Quality Index (AQI) 

At A Glance Pollutant 

Sunday 8/27/2023 

Monday 8/28/2023 

Tuesday 8/29/2023 

Wednesday 8/30/2023 

Thursday 8/31/2023 

Air Quality Index (AQI) At A Glance Pollutant 


Forecast Discussion 
The main weather story for this week will be the late summer heatwave. 
High temperatures reached above 110°F at Sky Harbor yesterday and Friday, and such temperatures are forecast for today through at least Tuesday. 
This is because of a strong high pressure that will dominate over the Southwest U.S




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