The highest AQ index in Arizona (as of 16:00 MST) is currently the Yuma area. Particle Pollution (PM10) is measuring at 60 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
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]
Because of geography, Arizona missed out on the significant winter weather that swept through much of the eastern and central thirds of the U.S. this weekend. And while frigid air grips many states the next few days, Arizona will escape this, too. Nevertheless, it's a bit chilly this morning in Phoenix--by Phoenix standards--with lows having dipped into the low-mid 40s, at least in the urban areas.
Looking ahead, the main weather story for Phoenix this week will be a warming trend. High pressure will enable daytime temperatures to rise into the low or mid-70s. Mornings will still hold a chilliness, though. We'll also see some high-level cloudiness at times, as weak waves pass through or skirt the Southwest.
Air quality-wise, air pollution will be primarily driven by local sources. That means PM10 (dust) and PM2.5 (smoke) levels will be highest in industrial areas south/southwest of the Phoenix metro area each day. PM10 and PM2.5 levels will also be highest in the mornings and evenings when the inversion (layer of warm air that traps pollutants near the ground) is at its strongest.
For now, PM10 and PM2.5 are forecast in the Moderate Air Quality Index (AQI) category each day.
Check back tomorrow morning for the latest!
M. Graves
https://azdeq.gov/forecast/phoenix
Last Update: Monday, January 26, 2026, 9:03 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 4 minutes ago