Arizona Air Quality Forecast

Updated On: 12/12/2019 - 3:05 PM
The maps below display the color of the highest Air Quality Index (AQI) by county. For a more detailed hourly forecast, click one of the following locations: Phoenix | Nogales | Tucson | Yuma

Air Quality Index

Switch to: Ozone   |  PM10   |  PM2.5

Today (12/13/2019)

Notice:

PM2.5 Health Watch in effect for Nogales Thursday (12/12) and Friday (12/13).

Tomorrow (12/14/2019)

*Localized air quality episodes may not be represented in this forecast (e.g. prescribed fires, localized dust, etc.).
*Not all counties have monitors for all pollutants (ozone, PM10, and PM2.5).
*Forecasts in some counties cannot be verified due to lack of monitors.
*High Pollution Advisories and Health Watches are only issued for locations with detailed forecasts (Phoenix, Tucson, Yuma, Nogales, and Pinal County).