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State of Rhode Island Department of Environmental Management

Air Quality Forecast

Tuesday, September 16, 2025
Ozone AQI Rating Fine Particles AQI Rating
Western 38 Good Western 26 Good
Providence 38 Good Providence 36 Good
Coastal 38 Good Coastal 22 Good
Wednesday, September 17, 2025
Ozone AQI Rating Fine Particles AQI Rating
Western 37 Good Western 24 Good
Providence 38 Good Providence 38 Good
Coastal 34 Good Coastal 24 Good
Thursday, September 18, 2025
Ozone AQI Rating Fine Particles AQI Rating
Western 35 Good Western 26 Good
Providence 36 Good Providence 40 Good
Coastal 36 Good Coastal 30 Good

Forecast Discussion

Monday, September 15, 2025 | Updated 11:00 AM

Air quality looks GOOD to start off the week. Clean east flows on Tuesday, with high pressure nearby and a coastal low pressure south of us. Mostly sunny with temps in the 70s. Northeast flow on Wednesday as the low ever so slowly drifts north. GOOD air quality. Mostly sunny early with clouds late, highs in the 70s. Some clouds Thursday as the low weakens and passes into New England. Some spotty showers, variable winds, and continued GOOD air quality. 

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.

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Additional Resources

For further information, contact:

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