AQD | Rillito Forecast

Updated On: 7/21/2026 - 9:12 AM

Click on each day to view forecast.

Tuesday Forecast:

PM₁₀

29 AQI
24-hr Avg: 31 µg/m³

Wednesday Forecast:

PM₁₀

20 AQI
24-hr Avg: 22 µg/m³

Thursday Forecast:

PM₁₀

23 AQI
24-hr Avg: 25 µg/m³

Friday Forecast:

PM₁₀

28 AQI
24-hr Avg: 30 µg/m³

Saturday Forecast:

PM₁₀

29 AQI
24-hr Avg: 31 µg/m³

Air Quality By Pollutant:

Pollutant

Tuesday
7/21/2026

Wednesday
7/22/2026

Thursday
7/23/2026

Friday
7/24/2026

Saturday
7/25/2026

PM₁₀

29

20

23

28

29

Pollutant

TUE

WED

THU

FRI

SAT

PM₁₀

29

20

23

28

29

O₃ = Ozone, PM₁₀ = Particles ≤ 10 microns, PM_2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Anticipate scattered showers and thunderstorms to develop once again over northeast Pima County later today before a downtrend in storm chances begins Wednesday with just slight chances each day through Saturday. With a decline in storm activity and cloud cover, there will be an increase in temperatures with above normal highs beginning Thursday.

Daily average PM10 levels are expected to remain in the Good range aided by recent rains and warm season ventilation. Of note, there is potential today for another brief spike in the readings with thunderstorm outflow winds. Thereafter, the likelihood of outflow winds decreases but slightly elevated readings in the mornings and evenings becomes more likely due to local activities and more stable conditions.

- A. Jamison
ADEQ Meteorologist

Tuesday Forecast:

PM₁₀

Wednesday Forecast:

PM₁₀

Thursday Forecast:

PM₁₀

Friday Forecast:

PM₁₀

Saturday Forecast:

PM₁₀

Air Quality By Pollutant:

Forecast Discussion:

Contact Us

Air Quality Forecasts

See More