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Primary air pollutant in the Rio Rico area:
PM2.5 - 79 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:
PM10 - 76 Moderate
[View the ADEQ Hourly Forecast for Nogales]
We continue to observe elevated particulate levels with highest concentrations during the morning and evening hours. Both PM10 and PM2.5 reached well into the Moderate AQI range yesterday.
Looking ahead, we don't expect a whole lot of change. We will continue to have generally calm weather conditions, which will allow particulate levels to remain elevated. Over the weekend, we are forecasting PM10 and PM2.5 to reach into the upper Moderate range with increased wood burning in the area. We are forecasting an improvement on Sunday compared to Saturday due to slightly better winds. Overall though, we are forecasting Moderate particulate levels to continue through the forecast period.
R. Nicoll
https://azdeq.gov/forecast/nogales
Last Update: Friday, December 12, 2025, 9:24 AM
Primary Pollutant: PM2.5 - 95 Moderate
Secondary Pollutant: PM10 - 89 Moderate
Primary Pollutant: PM2.5 - 88 Moderate
Secondary Pollutant: PM10 - 81 Moderate
Primary Pollutant: PM2.5 - 79 Moderate
Secondary Pollutant: PM10 - 71 Moderate
Primary Pollutant: PM2.5 - 76 Moderate
Secondary Pollutant: PM10 - 68 Moderate