Worst air pollution Downtown Port Angeles - Port Angeles, today and tomorrow
Today (9 August): Air quality in Downtown Port Angeles is fair. PM2.5, PM10, and O3 are fair; AQI and NO2 are medium; SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (NO2: 48.2/100).
Tomorrow (10 August 2026): Air quality in Downtown Port Angeles is fair. PM2.5 decreases to good; PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 43.5/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
As the city's small waterfront downtown beneath the Olympic Mountains, Downtown Port Angeles experiences air quality conditions similar to the rest of Port Angeles, following the same broader regional pattern. Any local variation tends to be minor compared with the seasonal swings seen across the wider city.
Today - 9 August | Pollution peaks at 00:00
AQI:
Medium
48.2/100
PM2.5 (fine particles):
Fair
27.5/100
PM10 (coarse particles):
Fair
23.4/100
NO2 (nitrogen dioxide):
Medium
48.2/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
12.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.9/100
PM1 (ultrafine particles):
Good
15.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 22:00
AQI:
Medium
43.5/100
PM2.5 (fine particles):
Good
16.0/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Medium
43.5/100
O3 (ozone):
Fair
25.2/100
SO2 (sulfur dioxide):
Good
15.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
12.0/100
Other Landmarks in Port Angeles
Frequently Asked Questions
Is air quality bad in Downtown Port Angeles right now?
On 9 August 2026, overall air quality in Downtown Port Angeles is fair. O3 is the main pollutant at 34.0/100. Pollution peaks around 12:00 AM (NO2: 48.2/100).
Will air quality be worse tomorrow in Downtown Port Angeles?
On 10 August 2026, air quality conditions in Downtown Port Angeles will be similar to today, with O3 forecast at fair at 25.2/100. Pollution peaks around 10:00 PM (NO2: 43.5/100).
When is air pollution at its worst in Downtown Port Angeles?
At Downtown Port Angeles, air quality tends to follow Port Angeles's broader seasonal rhythm: winter and spring bring the cleanest air, as frequent rain and consistent onshore wind clear pollution quickly, but August and September wildfire smoke can dominate the season, occasionally driving particulate levels sharply higher for several days. Prevailing onshore winds usually keep pollution moving rather than letting it settle.
Are air quality levels in Downtown Port Angeles 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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: 10 August 2026 at 02:34 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Get the full experience in the Airmine app.