Arizona Air Quality Forecast

Updated On: 10/18/2019 - 2:34 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 (10/21/2019)

Tomorrow (10/22/2019)

*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).