Worst air pollution Olympia, today and tomorrow
Today (15 July): Air quality in Olympia is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 58.7/100).
Tomorrow (16 July 2026): Air quality in Olympia is poor. AQI worsens to poor; O3 increases to poor; all other pollutants stay as today. Pollution peaks around 4:00 AM (O3: 60.6/100). 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
Use our Strava plugin to check your own exposure.
Olympia's air quality reflects the south Puget Sound position in the Deschutes River estuary, with consistent Pacific maritime airflows from Puget Sound providing reliable ventilation across Washington's state capital. Vehicle emissions from I-5 and the surrounding government and services corridor are the primary local sources, while wood burning in residential areas contributes winter PM2.5 and summer wildfire smoke from Washington and Oregon forests is an increasingly frequent and severe seasonal concern for this western Washington city.
Today - 15 July | Pollution peaks at 06:00
AQI:
Medium
58.7/100
PM2.5 (fine particles):
Good
15.9/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Fair
31.1/100
O3 (ozone):
Medium
58.7/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.6/100
PM1 (ultrafine particles):
Good
19.8/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 04:00
AQI:
Poor
60.6/100
PM2.5 (fine particles):
Good
14.5/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Fair
21.7/100
O3 (ozone):
Poor
60.6/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.9/100
PM1 (ultrafine particles):
Good
17.6/100
Pollen forecast in Olympia
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Olympia
Frequently Asked Questions
Is air quality bad in Olympia right now?
On 15 July 2026, overall air quality in Olympia is fair. NO2 is the main pollutant at 31.1/100. Pollution peaks around 6:00 AM (O3: 58.7/100).
Will air quality be worse tomorrow in Olympia?
On 16 July 2026, air quality conditions in Olympia will be worse than today, with AQI forecast at poor at 60.6/100. Pollution peaks around 4:00 AM (O3: 60.6/100).
When is air pollution at its worst in Olympia?
Like most US cities, Olympia sees air quality shift from season to season. In short, spring is often the freshest stretch, sandwiched between winter rain and summer fire season, whereas by late summer, wildfire smoke can override the region's usual clean-air advantage for days at a time. Coastal areas see relatively little of the smoke that can settle into inland valleys during fire season.
Are air quality levels in Olympia 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?
Check air quality in other popular cities:
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