Hourly Weather | Today Tuesday, July 21, 2026
Reading, Pennsylvania
4 AM
Cloudy Weather
70°
Feels Like 72°
22
Humidity: 86%
UV Index: 0
Wind: 6 mph
5 AM
Cloudy Weather
70°
Feels Like 72°
47
Humidity: 89%
UV Index: 0
Wind: 6 mph
6 AM
Stormy Weather
70°
Feels Like 68°
51
Humidity: 92%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
70°
Feels Like 72°
47
Humidity: 96%
UV Index: 0
Wind: 6 mph
8 AM
Cloudy Weather
70°
Feels Like 73°
49
Humidity: 96%
UV Index: 1
Wind: 6 mph
9 AM
Stormy Weather
72°
Feels Like 72°
58
Humidity: 93%
UV Index: 1
Wind: 6 mph
10 AM
Cloudy Weather
73°
Feels Like 81°
49
Humidity: 91%
UV Index: 1
Wind: 6 mph
11 AM
Cloudy Weather
75°
Feels Like 84°
49
Humidity: 89%
UV Index: 2
Wind: 7 mph
12 PM
Cloudy Weather
79°
Feels Like 88°
49
Humidity: 85%
UV Index: 2
Wind: 7 mph
1 PM
Stormy Weather
81°
Feels Like 84°
66
Humidity: 82%
UV Index: 2
Wind: 7 mph
2 PM
Cloudy Weather
81°
Feels Like 91°
40
Humidity: 80%
UV Index: 3
Wind: 8 mph
3 PM
Cloudy Weather
82°
Feels Like 90°
34
Humidity: 78%
UV Index: 2
Wind: 8 mph
4 PM
Cloudy Weather
81°
Feels Like 88°
40
Humidity: 81%
UV Index: 1
Wind: 9 mph
5 PM
Stormy Weather
79°
Feels Like 79°
75
Humidity: 82%
UV Index: 1
Wind: 9 mph
6 PM
Cloudy Weather
79°
Feels Like 82°
49
Humidity: 84%
UV Index: 1
Wind: 8 mph
7 PM
Stormy Weather
75°
Feels Like 75°
75
Humidity: 87%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Weather
73°
Feels Like 79°
40
Humidity: 92%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
73°
Feels Like 77°
34
Humidity: 92%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
73°
Feels Like 75°
39
Humidity: 94%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
72°
Feels Like 75°
49
Humidity: 95%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.48 µg/m³
  • PM10: 14 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.36 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.58 µg/m³
  • PM10: 12.69 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.33 ppm

Health Recommendations:

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

6 AM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.61 µg/m³
  • PM10: 11.16 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

7 AM
36 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.73 µg/m³
  • PM10: 9.82 µg/m³
  • O3: 0.035 ppm
  • NO2: 2.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

8 AM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.07 µg/m³
  • PM10: 8.91 µg/m³
  • O3: 0.029 ppm
  • NO2: 4 ppb
  • SO2: 0.7 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

9 AM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.16 µg/m³
  • PM10: 7.8 µg/m³
  • O3: 0.025 ppm
  • NO2: 4.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.23 µg/m³
  • PM10: 6.74 µg/m³
  • O3: 0.022 ppm
  • NO2: 5.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.57 µg/m³
  • PM10: 6.01 µg/m³
  • O3: 0.019 ppm
  • NO2: 5.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.84 µg/m³
  • PM10: 5.2 µg/m³
  • O3: 0.021 ppm
  • NO2: 4.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

1 PM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.45 µg/m³
  • PM10: 4.75 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.5 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

2 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 4.77 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

3 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.53 µg/m³
  • PM10: 4.77 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.26 µg/m³
  • PM10: 4.5 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.84 µg/m³
  • PM10: 4.07 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.6 µg/m³
  • PM10: 3.83 µg/m³
  • O3: 0.034 ppm
  • NO2: 4.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.62 µg/m³
  • PM10: 3.85 µg/m³
  • O3: 0.031 ppm
  • NO2: 5.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.76 µg/m³
  • PM10: 3.99 µg/m³
  • O3: 0.029 ppm
  • NO2: 5.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 4.02 µg/m³
  • O3: 0.028 ppm
  • NO2: 4.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.67 µg/m³
  • PM10: 3.84 µg/m³
  • O3: 0.028 ppm
  • NO2: 4.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.22 µg/m³
  • PM10: 3.37 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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