Hourly Weather | Today › Thursday, October 8, 2026
Portland, Oregon
11 PM
Cloudy Night
61°
Feels Like 59°
0
Humidity: 79%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 PM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.4 µg/m³
  • PM10: 11.1 µg/m³
  • O3: 0.019 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.