Hourly Weather | Today Sunday, September 13, 2026
Philadelphia, Pennsylvania
8 PM
Cloudy Night
79°
Feels Like 82°
20
Humidity: 79%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
75°
Feels Like 81°
20
Humidity: 82%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
75°
Feels Like 79°
20
Humidity: 85%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
73°
Feels Like 77°
20
Humidity: 86%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 PM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.54 µg/m³
  • PM10: 9.14 µg/m³
  • O3: 0.032 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 PM
28 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.79 µg/m³
  • PM10: 8.65 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

10 PM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.28 µg/m³
  • PM10: 8.39 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.97 µg/m³
  • PM10: 8.27 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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