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Primary air pollutant in the Rincon Valley area:
OZONE - 45 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 44 Good
PM10 - 44 Good
[View the ADEQ Hourly Forecast for Tucson]
Ozone levels were a little higher than expected yesterday given the strong afternoon winds, but still stayed in the Moderate AQI range. PM10 and PM2.5 remained comfortably in the Good category as expected. Looking ahead, we don't expect any significant changes. We are forecasting ozone levels to stay in the Moderate range, while PM10 and PM2.5 are forecast to stay in the Good AQI category through the forecast period.
R. Nicoll
https://azdeq.gov/forecast/tucson
Last Update: Thursday, May 28, 2026, 7:41 AM
Primary Pollutant: OZONE - 77 Moderate
Secondary Pollutant: PM2.5 - 37 Good
Secondary Pollutant: PM10 - 25 Good
Primary Pollutant: OZONE - 74 Moderate
Secondary Pollutant: PM2.5 - 43 Good
Secondary Pollutant: PM10 - 29 Good
Primary Pollutant: OZONE - 84 Moderate
Secondary Pollutant: PM2.5 - 44 Good
Secondary Pollutant: PM10 - 31 Good
Primary Pollutant: OZONE - 84 Moderate
Secondary Pollutant: PM2.5 - 44 Good
Secondary Pollutant: PM10 - 32 Good
Primary Pollutant: OZONE - 77 Moderate
Secondary Pollutant: PM2.5 - 45 Good
Secondary Pollutant: PM10 - 33 Good
Primary Pollutant: OZONE - 80 Moderate
Secondary Pollutant: PM2.5 - 42 Good
Secondary Pollutant: PM10 - 32 Good