Highest air pollution Washington, today and tomorrow
Today (27 June): Air quality in Washington is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 37.6/100).
Tomorrow (28 June 2026): Air quality in Washington is fair. All pollutants stay as today. Pollution peaks around 9:00 AM (O3: 36.7/100). 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
Washington's air quality reflects the mid-Atlantic regional pollution burden, with vehicle emissions from the extensive beltway corridor combining with upwind industrial sources to elevate ozone and PM2.5 during summer. The Potomac and Anacostia river corridors provide natural ventilation pathways, while the National Mall's open geometry improves central city dispersal.
Today - 27 June | Pollution peaks at 11:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
14.0/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Good
14.8/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Good
12.2/100
Levels show the poorest local air quality during the day
Tomorrow - 28 June | Pollution peaks at 09:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
14.7/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Good
14.8/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Good
12.8/100
Pollen forecast in Washington
View pollen forecastFrequently Asked Questions
Is air quality bad in Washington right now?
On 27 June 2026, overall air quality in Washington is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 11:00 AM (O3: 37.6/100).
Will air quality be worse tomorrow in Washington?
On 28 June 2026, air quality conditions in Washington will be similar to today, with AQI forecast at fair at 36.7/100. Pollution peaks around 9:00 AM (O3: 36.7/100).
Are air quality levels in Washington 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.
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Data provided by Airmine — Last update: 27 June 2026 at 18:36 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team