Air Quality Forecast

Friday, September 5, 2025
Ozone	AQI	Rating	Fine Particles	AQI	Rating
Western	46	Good	Western	38	Good
Providence	42	Good	Providence	40	Good
Coastal	40	Good	Coastal	32	Good

Saturday, September 6, 2025
Ozone	AQI	Rating	Fine Particles	AQI	Rating
Western	40	Good	Western	52	Moderate
Providence	40	Good	Providence	56	Moderate
Coastal	40	Good	Coastal	52	Moderate

Sunday, September 7, 2025
Ozone	AQI	Rating	Fine Particles	AQI	Rating
Western	36	Good	Western	40	Good
Providence	38	Good	Providence	48	Good
Coastal	40	Good	Coastal	42	Good

Forecast Discussion

Thursday, September 4, 2025 | Updated 3:15 PM

Early clouds make way for sunshine and summery breezes on Friday, with steady south winds, highs near 80F. Air quality GOOD for ozone. Western US wildfire smoke moves in aloft late day, with some possible mixing to the surface of MODERATE fine particles. Filtered sunshine and warm again on Saturday. MODERATE fine particles from wildfire smoke. Clouds and a possible shower early Sunday. Cooler with light north winds and temps in the upper 60s. Air quality GOOD but will be keeping an eye on firesmoke.

Air Quality Index (AQI)

Rating	Index	Cautionary Statements
Good	0-50	Air quality is considered satisfactory and air pollution poses little or no risk.
Moderate	51-100	Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
Unhealthy for Sensitive Groups	101-150	Members of sensitive groups may experience health effects. The general public is not likely to be affected.
Unhealthy	151-200	Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
Very Unhealthy	201-300	Health Alert: Everyone may experience more serious health effects.
Hazardous	301 and higher	Health warnings of emergency conditions. The entire population is more likely to be affected.

Interested in More Information?

Learn About Ozone Learn About Fine Particles Recess Guidance for Schools Guidance for Wildfire Smoke

Additional Resources

For further information, contact:

Darren Austin at (401) 537-4404
Joseph Poccia at (401) 537-4385