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  4. Washington County

Washington County

Oregon

2026-09-16 20:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
60
PM2.5
μg/m³
4.2
NO2
μg/m³
12.3
CO
μg/m³
375
Weather
  • ℃
  • ℉
25℃
42%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
Places included
Aloha
AQI 22
Banks
AQI 20
Beaverton
AQI 22
Cedar Hills
AQI 22
Cornelius
AQI 20
Durham
AQI 29
Forest Grove
AQI 20
Garden Home-Whitford
AQI 22
Gaston
AQI 20
Hillsboro
AQI 20
King City
AQI 29
Metzger
AQI 22
North Plains
AQI 21
Raleigh Hills
AQI 22
Sherwood
AQI 29
Tigard
AQI 29
Tualatin
AQI 32
West Haven-Sylvan
AQI 22
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 20
Cornelius
AQI 20
Banks
AQI 20
Gaston
AQI 20
North Plains
AQI 21
Hillsboro
AQI 20
Aloha
AQI 22
Yamhill
AQI 20
Cedar Hills
AQI 22
Beaverton
AQI 22
West Haven-Sylvan
AQI 22