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Primary air pollutant in the Tucson Estates area:
OZONE - 71 Moderate
If you are unusually sensitive to particle pollution, consider reducing your activity level or shorten the amount of time you are active outdoors.
Other Pollutants:
PM2.5 - 34 Good
PM10 - 15 Good
[View the ADEQ Hourly Forecast for Tucson]
The monsoon will remain alive over the next few days, as moisture--the fuel for thunderstorms--remains in place over southeastern Arizona. At least over the next 24 hours, we'll also have the help of a small disturbance in the upper atmosphere, which will help to support thunderstorms. Tonight could actually end up being active, because of the timing of the aforementioned disturbance.
What happens storm-wise beyond tomorrow morning will heavily depend on what happens today/tonight. So, we'll have to take this a day at a time. Nevertheless, more storm activity will be possible later this week.
Air quality-wise, this past weekend's rain (and rain before that, for that matter), will help to keep PM10 (dust) levels down. Any rain today will also do the same. However, we'll have to keep our eye on ozone, which will have the potential to increase when skies are sunny during the day.
For now, ozone is forecast in the Moderate AQI category.
Check back again tomorrow morning for the latest.
M. Graves
https://azdeq.gov/forecast/tucson
Last Update: Monday, July 27, 2026, 8:22 AM
Primary Pollutant: OZONE - 58 Moderate
Secondary Pollutant: PM2.5 - 38 Good
Secondary Pollutant: PM10 - 18 Good
Primary Pollutant: OZONE - 48 Good
Secondary Pollutant: PM2.5 - 35 Good
Secondary Pollutant: PM10 - 18 Good
Primary Pollutant: OZONE - 49 Good
Secondary Pollutant: PM2.5 - 33 Good
Secondary Pollutant: PM10 - 15 Good
Primary Pollutant: OZONE - 50 Good
Secondary Pollutant: PM2.5 - 37 Good
Secondary Pollutant: PM10 - 16 Good
Primary Pollutant: OZONE - 51 Moderate
Secondary Pollutant: PM2.5 - 38 Good
Secondary Pollutant: PM10 - 19 Good
Primary Pollutant: OZONE - 51 Moderate
Secondary Pollutant: PM2.5 - 36 Good
Secondary Pollutant: PM10 - 20 Good