Hourly Weather | Today Tuesday, August 25, 2026
Allentown, Pennsylvania
9 AM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 82%
UV Index: 3
Wind: 6 mph
10 AM
Cloudy Weather
66°
Feels Like 72°
0
Humidity: 75%
UV Index: 4
Wind: 7 mph
11 AM
Cloudy Weather
72°
Feels Like 75°
0
Humidity: 68%
UV Index: 5
Wind: 8 mph
12 PM
Cloudy Weather
73°
Feels Like 79°
0
Humidity: 63%
UV Index: 7
Wind: 8 mph
1 PM
Cloudy Weather
73°
Feels Like 81°
0
Humidity: 60%
UV Index: 7
Wind: 8 mph
2 PM
Cloudy Weather
75°
Feels Like 81°
0
Humidity: 58%
UV Index: 7
Wind: 8 mph
3 PM
Cloudy Weather
75°
Feels Like 81°
0
Humidity: 57%
UV Index: 5
Wind: 8 mph
4 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 55%
UV Index: 4
Wind: 8 mph
5 PM
Cloudy Weather
75°
Feels Like 77°
0
Humidity: 58%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 62%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
73°
Feels Like 72°
0
Humidity: 66%
UV Index: 1
Wind: 6 mph
8 PM
Night
72°
Feels Like 70°
0
Humidity: 73%
UV Index: 0
Wind: 5 mph
9 PM
Night
68°
Feels Like 66°
0
Humidity: 80%
UV Index: 0
Wind: 5 mph
10 PM
Night
64°
Feels Like 64°
0
Humidity: 87%
UV Index: 0
Wind: 5 mph
11 PM
Night
63°
Feels Like 63°
0
Humidity: 95%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.43 µg/m³
  • PM10: 5.97 µg/m³
  • O3: 0.017 ppm
  • NO2: 3.2 ppb
  • SO2: 1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.25 µg/m³
  • PM10: 6.81 µg/m³
  • O3: 0.020 ppm
  • NO2: 3 ppb
  • SO2: 1.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.62 µg/m³
  • PM10: 8.2 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.16 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.19 µg/m³
  • PM10: 7.01 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.3 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.32 µg/m³
  • PM10: 5.89 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.9 ppb
  • SO2: 1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.93 µg/m³
  • PM10: 5.45 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.43 µg/m³
  • PM10: 4.91 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

4 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.88 µg/m³
  • PM10: 4.33 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.42 µg/m³
  • PM10: 3.82 µg/m³
  • O3: 0.040 ppm
  • NO2: 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.

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

Pollutant Concentrations:

  • PM2.5: 3.21 µg/m³
  • PM10: 3.84 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.24 µg/m³
  • PM10: 4.38 µg/m³
  • O3: 0.026 ppm
  • NO2: 4 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.27 µg/m³
  • PM10: 4.89 µg/m³
  • O3: 0.021 ppm
  • NO2: 5.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 5.36 µg/m³
  • O3: 0.017 ppm
  • NO2: 5.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.34 µg/m³
  • PM10: 5.81 µg/m³
  • O3: 0.014 ppm
  • NO2: 5.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.39 µg/m³
  • PM10: 6.15 µg/m³
  • O3: 0.011 ppm
  • NO2: 6.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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