Home > USA > Arizona > Yuma County > San Luis
Primary air pollutant in the San Luis area:
OZONE - 44 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 41 Good
PM10 - 40 Good
[View the ADEQ Hourly Forecast for Yuma]
Expect another day of record temperatures before a change in the weather pattern begins over the weekend and continues next week. The change in the pattern will lead to a cooling trend, stronger daytime winds, and more cloudiness, and a very slight chance of rain (starting Tuesday).
Peak 8 hour average Ozone is anticipated to reach the low Moderate range today before improving over the weekend due to decreased commercial and transportation activity, increased ventilation and more cloudiness. Anticipate an uptrend beginning Monday.
Daily average Particulates are expected to reach the low Moderate range today and Friday before significant improvement arrives Sunday with a decrease in commercial and transportation activity and more favorable wind directions. Daily averages trend up Monday and Tuesday with the typical increase in local activities as well as less favorable wind directions.
Peak ventilation is expected to be in the upper part of the Good range today, Very Good Saturday, and Excellent Sunday and Monday,
A. Jamison
https://azdeq.gov/forecast/yuma
Last Update: Friday, March 27, 2026, 8:06 AM
Primary Pollutant: PM10 - 58 Moderate
Secondary Pollutant: OZONE - 44 Good
Secondary Pollutant: PM2.5 - 52 Moderate
Primary Pollutant: OZONE - 40 Good
Secondary Pollutant: PM2.5 - 32 Good
Secondary Pollutant: PM10 - 31 Good
Primary Pollutant: OZONE - 44 Good
Secondary Pollutant: PM2.5 - 39 Good
Secondary Pollutant: PM10 - 44 Good
Primary Pollutant: OZONE - 47 Good
Secondary Pollutant: PM2.5 - 41 Good
Secondary Pollutant: PM10 - 45 Good