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Primary air pollutant in the Oro Valley area:
PM10 - 19 Good
Enjoy your outdoor activities.
[View the ADEQ Hourly Forecast for Rillito]
Around midnight last night, brief blowing dust occurred, but it was quickly followed by rain. That's why, so far this morning, PM10 (dust) levels have been running mostly low.
It's nice and humid this morning, with dewpoints comfortably (or uncomfortably) in the 60s. As moisture sticks around, storm/rain chances will remain in the forecast the next couple days. However, coverage of storms/rain will decrease after today. We also can't rule out the possibility of winds from distant thunderstorms to the east moving into the area in the evenings/nights.
Given the recent rain, PM10 should generally stay low. However, we can't rule out elevated PM10 from local activity, mainly in the mornings.
Check back again tomorrow morning for the next update!
M. Graves
https://azdeq.gov/forecast/rillito
Last Update: Tuesday, July 28, 2026, 8:24 AM
Primary Pollutant: PM10 - 55 Moderate
Primary Pollutant: PM10 - 29 Good
Primary Pollutant: PM10 - 31 Good
Primary Pollutant: PM10 - 34 Good
Primary Pollutant: PM10 - 29 Good