Hourly Weather | Today Saturday, February 21, 2026
Philadelphia, Pennsylvania
11 PM
Cloudy Night
41°
Feels Like 39°
7
Humidity: 71%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 9.44 µg/m³
  • PM10: 17.17 µg/m³
  • O3: 0.022 ppm
  • NO2: 7.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.26 ppm

Health Recommendations:

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