Worst air pollution Colonial Williamsburg - Williamsburg, today and tomorrow
Today (16 July): Air quality in Colonial Williamsburg is fair. PM2.5 and PM1 are fair; AQI, NO2, and O3 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 12:00 PM (O3: 44.7/100).
Tomorrow (17 July 2026): Air quality in Colonial Williamsburg is fair. AQI worsens to fair; NO2 increases to fair; O3 increases to fair; PM1 decreases to good; all other 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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Colonial Williamsburg's air quality reflects the flat Virginia Tidewater Coastal Plain position, with vehicle traffic on the surrounding Duke of Gloucester Street corridor and the concentrated historical tourism character contributing local sources. The Chesapeake Bay's maritime influence provides background ventilation, while the extraordinary preserved colonial landscape's tree-lined character provides natural filtration and the historic district generally maintains moderate Virginia Tidewater readings throughout most of the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Medium
44.7/100
PM2.5 (fine particles):
Fair
31.3/100
PM10 (coarse particles):
Good
16.4/100
NO2 (nitrogen dioxide):
Medium
43.4/100
O3 (ozone):
Medium
44.7/100
SO2 (sulfur dioxide):
Good
11.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Fair
20.7/100
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):
Fair
29.2/100
PM10 (coarse particles):
Good
12.5/100
NO2 (nitrogen dioxide):
Fair
36.1/100
O3 (ozone):
Fair
38.5/100
SO2 (sulfur dioxide):
Good
15.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
17.0/100
Other Landmarks in Williamsburg
Sports venues in Williamsburg
Frequently Asked Questions
Is air quality bad in Colonial Williamsburg right now?
On 16 July 2026, overall air quality in Colonial Williamsburg is fair. PM2.5 is the main pollutant at 31.3/100. Pollution peaks around 12:00 PM (O3: 44.7/100).
Will air quality be worse tomorrow in Colonial Williamsburg?
On 17 July 2026, air quality conditions in Colonial Williamsburg 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 Colonial Williamsburg?
Air quality at Colonial Williamsburg shifts across the year — the calmest air of the year usually arrives well after the summer ozone season fades, whereas hot, humid summer conditions and regional haze drive ozone spikes, especially during heat waves. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Colonial Williamsburg 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: 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