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Primary air pollutant in the Williams area:
OZONE - 43 Good
Enjoy your outdoor activities.
[View the ADEQ Hourly Forecast for Flagstaff]
This week, ozone has reached the Moderate AQI category in Flagstaff every day, even despite strong daytime breezes. Because of this, ozone is forecast in the Moderate AQI category again today. We'll also keep ozone in the Moderate category Friday through Monday, given the potential for regional ozone levels to stay somewhat elevated. But, we'll watch for any changes in ozone trends.
M. Graves
https://azdeq.gov/forecast/flagstaff
Last Update: Thursday, May 28, 2026, 9:25 AM
Primary Pollutant: OZONE - 77 Moderate
Primary Pollutant: OZONE - 77 Moderate
Primary Pollutant: OZONE - 67 Moderate
Primary Pollutant: OZONE - 64 Moderate
Primary Pollutant: OZONE - 67 Moderate
Primary Pollutant: OZONE - 71 Moderate