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Primary air pollutant in the Arivaca area:
PM2.5 - 51 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 - 21 Good
[View the ADEQ Hourly Forecast for Nogales]
Particulate observations held in the Moderate AQI category for Thursday.
Changes are coming, including a slight downward trend in temperatures through the weekend and into the upcoming workweek. Winds pick up by midday Friday which could activate localized particulates and dust, spiking PM values higher in the Moderate AQI range.
Clouds return late Friday and into the weekend. Gusty winds return Sunday afternoon, but should not be around for as long of a period as seen Friday night through Saturday. Isolated rain showers develop Sunday afternoon and overnight, which may kick up some additional localized dust. We could see another round of showers for late Monday, in addition to some gusty afternoon winds, which may elevate particulate values.
A similar setup is expected on Tuesday with gusty afternoon winds with particulate values holding in the Moderate AQI range.
J. Smith
https://azdeq.gov/forecast/nogales
Last Update: Friday, March 27, 2026, 9:50 AM
Primary Pollutant: PM10 - 55 Moderate
Secondary Pollutant: PM2.5 - 55 Moderate
Primary Pollutant: PM10 - 56 Moderate
Secondary Pollutant: PM2.5 - 54 Moderate
Primary Pollutant: PM10 - 54 Moderate
Secondary Pollutant: PM2.5 - 54 Moderate