Portland, OR Air Quality Index from WeatherBug.com

Your Local Air Quality

Today's Air Quality - Portland, OR

Date

Code

AQI Level

Major Pollutant

11/20/2009

6:00 PM

Small Particulate Matter

Air Quality Forecast - Portland, OR

Date

Code

AQI Level

Major Pollutant

11/20/2009

Small Particulate Matter

11/20/2009

Small Particulate Matter

11/21/2009

Small Particulate Matter

Air Quality Index (AQI) Scale
AQI Color	AQI Category	AQI Numbers
	Good	0-50
	Moderate	51-100
	Unhealthy for Sensitive Groups	101-150
	Unhealthy	151-200
	Very Unhealthy	201-300
	Hazardous	301-500+

Lo: 41 °F

Showers in the evening...then showers likely after midnight. Lows around 40. Southwest wind 5 to 15 more

Hi: 45 °F

Lo: 42 °F

A chance of rain in the morning...then rain in the afternoon. Highs around 45. South wind 10 to 20 m more