Hourly Weather | Today Wednesday, February 25, 2026
Seattle, Washington
11 PM
Cloudy Weather
43°
Feels Like 32°
38
Humidity: 84%
UV Index: 0
Wind: 15 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.04 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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