Hourly Weather | Today Friday, January 2, 2026
Philadelphia, Pennsylvania
11 AM
Cloudy Weather
32°
Feels Like 18°
32
Humidity: 45%
Wind: 16 mph
UV Index: 1
12 PM
Cloudy Weather
34°
Feels Like 19°
32
Humidity: 42%
Wind: 17 mph
UV Index: 1
1 PM
Cloudy Weather
34°
Feels Like 25°
32
Humidity: 40%
Wind: 16 mph
UV Index: 2
2 PM
Cloudy Weather
36°
Feels Like 27°
32
Humidity: 38%
Wind: 16 mph
UV Index: 2
3 PM
Cloudy Weather
36°
Feels Like 25°
32
Humidity: 39%
Wind: 15 mph
UV Index: 1
4 PM
Cloudy Weather
36°
Feels Like 25°
32
Humidity: 39%
Wind: 14 mph
UV Index: 1
5 PM
Cloudy Night
34°
Feels Like 21°
32
Humidity: 42%
Wind: 13 mph
UV Index: 0
6 PM
Cloudy Night
32°
Feels Like 21°
21
Humidity: 44%
Wind: 13 mph
UV Index: 0
7 PM
Cloudy Night
32°
Feels Like 23°
0
Humidity: 44%
Wind: 10 mph
UV Index: 0
8 PM
Cloudy Night
30°
Feels Like 21°
0
Humidity: 46%
Wind: 9 mph
UV Index: 0
9 PM
Cloudy Night
30°
Feels Like 21°
0
Humidity: 47%
Wind: 9 mph
UV Index: 0
10 PM
Cloudy Night
30°
Feels Like 21°
0
Humidity: 47%
Wind: 9 mph
UV Index: 0
11 PM
Cloudy Night
30°
Feels Like 21°
0
Humidity: 48%
Wind: 9 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.51 µg/m³
  • PM10: 10.78 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.7 ppb
  • SO2: 2.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

12 PM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.11 µg/m³
  • PM10: 11.68 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.6 ppb
  • SO2: 2.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

1 PM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.78 µg/m³
  • PM10: 12.61 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.5 ppb
  • SO2: 2.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

2 PM
36 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.73 µg/m³
  • PM10: 12.24 µg/m³
  • O3: 0.035 ppm
  • NO2: 6.7 ppb
  • SO2: 2.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

3 PM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.78 µg/m³
  • PM10: 12.18 µg/m³
  • O3: 0.035 ppm
  • NO2: 7.1 ppb
  • SO2: 2.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

4 PM
36 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.54 µg/m³
  • PM10: 11.81 µg/m³
  • O3: 0.035 ppm
  • NO2: 8.1 ppb
  • SO2: 2.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.78 µg/m³
  • PM10: 10.76 µg/m³
  • O3: 0.034 ppm
  • NO2: 8.8 ppb
  • SO2: 2.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

6 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.01 µg/m³
  • PM10: 9.71 µg/m³
  • O3: 0.034 ppm
  • NO2: 8.4 ppb
  • SO2: 2.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

7 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.46 µg/m³
  • PM10: 9.02 µg/m³
  • O3: 0.034 ppm
  • NO2: 7.9 ppb
  • SO2: 1.9 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

8 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.05 µg/m³
  • PM10: 8.5 µg/m³
  • O3: 0.034 ppm
  • NO2: 7.3 ppb
  • SO2: 1.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

9 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.72 µg/m³
  • PM10: 8.02 µg/m³
  • O3: 0.035 ppm
  • NO2: 6.8 ppb
  • SO2: 1.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

10 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.36 µg/m³
  • PM10: 7.47 µg/m³
  • O3: 0.036 ppm
  • NO2: 6.2 ppb
  • SO2: 1.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.11 µg/m³
  • PM10: 7.04 µg/m³
  • O3: 0.037 ppm
  • NO2: 5.7 ppb
  • SO2: 1.9 ppb
  • CO: 0.18 ppm

Health Recommendations:

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