Worst air pollution Nantucket, today and tomorrow
Today (16 July): Air quality in Nantucket is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 36.5/100).
Tomorrow (17 July 2026): Air quality in Nantucket is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 38.5/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Air quality in Nantucket is driven mostly by open-ocean maritime air — isolation from the mainland keeps pollution levels very low. Most days bring generally favorable conditions here, with occasional exceptions tied to shifting weather patterns. As with most US destinations, conditions here are best understood by season rather than by a single yearly average.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
36.5/100
PM2.5 (fine particles):
Good
13.6/100
PM10 (coarse particles):
Good
14.1/100
NO2 (nitrogen dioxide):
Fair
25.5/100
O3 (ozone):
Fair
36.5/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.5/100
PM1 (ultrafine particles):
Good
8.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
38.5/100
PM2.5 (fine particles):
Good
10.5/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Fair
27.1/100
O3 (ozone):
Fair
38.5/100
SO2 (sulfur dioxide):
Good
2.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
7.0/100
Pollen forecast in Nantucket
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Nantucket
Frequently Asked Questions
Is air quality bad in Nantucket right now?
On 16 July 2026, overall air quality in Nantucket is fair. AQI is the main air quality indicator at 36.5/100. Pollution peaks around 12:00 PM (O3: 36.5/100).
Will air quality be worse tomorrow in Nantucket?
On 17 July 2026, air quality conditions in Nantucket will be similar to today, with AQI forecast at fair at 38.5/100. Pollution peaks around 1:00 PM (O3: 38.5/100).
When is air pollution at its worst in Nantucket?
Air quality in Nantucket shifts across the year: the shoulder seasons bring the most consistently clean air of the year, but hot, humid summer days bring the highest ozone risk, often worsened by pollution transported in from other regions. Coastal sea breezes can offer some relief from inland summer ozone buildup.
Are air quality levels in Nantucket based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Want to see air quality forecasts for other cities in United States?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app