The highest AQ index in Arizona (as of 10:00 MST) is currently the Phoenix area. Particle Pollution (PM10) is measuring at 142 (Unhealthy for Sensitive Groups). This means members of sensitive groups may experience health effects. The general public is less likely to be affected.
Over the next few days, the highest Particle Pollution (PM10) will be in the Phoenix area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
[View the ADEQ Hourly Forecast for Phoenix]
A weather system will move through northwest Mexico and southern Arizona today and Tuesday. In the process, there will be a chance for showers and thunderstorms this afternoon and tonight (mainly this evening). Area-wide average rainfall will likely be modest (less than two tenths of an inch) but localized pockets associated with thunderstorms would see more. Variable and gusty winds could start during the late afternoon but will be more likely in the evening. After the system departs Tuesday, high pressure will gradually build over the region the rest of the week. And with that, expect a warming trend with light winds.
Daily average Particulate levels are expected to be in the Moderate range for most of this workweek except for Tuesday with daily average values anticipated to dip into the Good range with the beneficial effects of the scattered shower activity Monday night. Today is expected to have the highest readings with a temporary increase this evening due to gusty winds from the south kicking up some pockets of dust. Peak average Ozone is anticipated to be close to the threshold between Good and Moderate with Thursday and Friday a bit more likely to reach Moderate.
A. Jamison
https://azdeq.gov/forecast/phoenix
Last Update: Monday, March 9, 2026, 9:26 AM
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 14 minutes ago