Hourly Weather | Today Thursday, December 11, 2025
Allentown, Pennsylvania
9 AM
Cloudy Weather
28°
Feels Like 12°
0
Humidity: 58%
Wind: 20 mph
UV Index: 1
10 AM
Cloudy Weather
28°
Feels Like 12°
0
Humidity: 53%
Wind: 20 mph
UV Index: 2
11 AM
Cloudy Weather
28°
Feels Like 14°
0
Humidity: 51%
Wind: 21 mph
UV Index: 2
12 PM
Cloudy Weather
30°
Feels Like 14°
0
Humidity: 52%
Wind: 21 mph
UV Index: 1
1 PM
Cloudy Weather
30°
Feels Like 14°
1
Humidity: 53%
Wind: 21 mph
UV Index: 1
2 PM
Cloudy Weather
32°
Feels Like 16°
1
Humidity: 51%
Wind: 21 mph
UV Index: 1
3 PM
Cloudy Weather
30°
Feels Like 14°
1
Humidity: 54%
Wind: 21 mph
UV Index: 1
4 PM
Cloudy Weather
30°
Feels Like 12°
1
Humidity: 55%
Wind: 20 mph
UV Index: 0
5 PM
Cloudy Night
28°
Feels Like 10°
1
Humidity: 58%
Wind: 18 mph
UV Index: 0
6 PM
Cloudy Night
27°
Feels Like 10°
1
Humidity: 62%
Wind: 17 mph
UV Index: 0
7 PM
Cloudy Night
27°
Feels Like 16°
0
Humidity: 63%
Wind: 12 mph
UV Index: 0
8 PM
Cloudy Night
27°
Feels Like 16°
0
Humidity: 64%
Wind: 12 mph
UV Index: 0
9 PM
Cloudy Night
27°
Feels Like 16°
0
Humidity: 66%
Wind: 10 mph
UV Index: 0
10 PM
Cloudy Night
27°
Feels Like 16°
0
Humidity: 66%
Wind: 10 mph
UV Index: 0
11 PM
Cloudy Night
25°
Feels Like 16°
0
Humidity: 67%
Wind: 10 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.038 ppm
  • NO2: 2 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

10 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.039 ppm
  • NO2: 2 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

11 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.8 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.81 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.82 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.88 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.55 µg/m³
  • PM10: 1.06 µg/m³
  • O3: 0.043 ppm
  • NO2: 2 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 1.15 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.6 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
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 1.2 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.68 µg/m³
  • PM10: 1.36 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.78 µg/m³
  • PM10: 1.56 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.87 µg/m³
  • PM10: 1.72 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.92 µg/m³
  • PM10: 1.76 µg/m³
  • O3: 0.041 ppm
  • NO2: 3 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.95 µg/m³
  • PM10: 1.75 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.97 µg/m³
  • PM10: 1.72 µg/m³
  • O3: 0.040 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.