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  4. Washington County

Washington County

Oregon

2026-09-16 19:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
4.4
O3
μg/m³
51.4
NO2
μg/m³
10.3
CO
μg/m³
250
Weather
  • ℃
  • ℉
24℃
45%
20 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • CO
Places included
Aloha
AQI 23
Banks
AQI 22
Beaverton
AQI 23
Cedar Hills
AQI 23
Cornelius
AQI 22
Durham
AQI 31
Forest Grove
AQI 22
Garden Home-Whitford
AQI 23
Gaston
AQI 22
Hillsboro
AQI 22
King City
AQI 31
Metzger
AQI 23
North Plains
AQI 22
Raleigh Hills
AQI 23
Sherwood
AQI 31
Tigard
AQI 31
Tualatin
AQI 31
West Haven-Sylvan
AQI 25
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 22
Cornelius
AQI 22
Banks
AQI 22
Gaston
AQI 22
North Plains
AQI 22
Hillsboro
AQI 22
Aloha
AQI 23
Yamhill
AQI 22
Cedar Hills
AQI 23
Beaverton
AQI 23
West Haven-Sylvan
AQI 25