Air Quality Forecast

Saturday, September 19, 2026
Ozone	AQI	Rating	Fine Particles	AQI	Rating
Western	38	Good	Western	20	Good
Providence	37	Good	Providence	30	Good
Coastal	39	Good	Coastal	20	Good

Sunday, September 20, 2026
Ozone	AQI	Rating	Fine Particles	AQI	Rating
Western	35	Good	Western	18	Good
Providence	34	Good	Providence	28	Good
Coastal	36	Good	Coastal	20	Good

Monday, September 21, 2026
Ozone	AQI	Rating	Fine Particles	AQI	Rating
Western	38	Good	Western	16	Good
Providence	37	Good	Providence	24	Good
Coastal	38	Good	Coastal	14	Good

Forecast Discussion

Friday September 18, 2026 | Updated 11:40 AM

A taste of fall over the weekend with GOOD air quality through the period. Sunny, near 65F Saturday with light north winds. More clouds on Sunday, SE flow, and a chance of a shower. Near 65F. Low pressure nearby on Monday, with clouds, a spot shower, and NE flow. Highs again in the mid 60s.

Air Quality Forecast Regions

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 Wildfire Smoke Guidance

Additional Resources

For further information, contact:

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