Hourly Weather | Today Monday, April 6, 2026
Allentown, Pennsylvania
11 AM
Cloudy Weather
46°
Feels Like 41°
0
Humidity: 44%
UV Index: 4
Wind: 17 mph
12 PM
Cloudy Weather
48°
Feels Like 45°
0
Humidity: 40%
UV Index: 4
Wind: 17 mph
1 PM
Cloudy Weather
52°
Feels Like 45°
0
Humidity: 39%
UV Index: 3
Wind: 17 mph
2 PM
Cloudy Weather
52°
Feels Like 46°
17
Humidity: 38%
UV Index: 2
Wind: 15 mph
3 PM
Cloudy Weather
54°
Feels Like 46°
17
Humidity: 39%
UV Index: 2
Wind: 15 mph
4 PM
Cloudy Weather
52°
Feels Like 46°
22
Humidity: 43%
UV Index: 2
Wind: 15 mph
5 PM
Partly Sunny with Showers
52°
Feels Like 43°
40
Humidity: 47%
UV Index: 1
Wind: 15 mph
6 PM
Cloudy Weather
48°
Feels Like 43°
37
Humidity: 51%
UV Index: 1
Wind: 15 mph
7 PM
Cloudy Weather
50°
Feels Like 43°
37
Humidity: 53%
UV Index: 0
Wind: 14 mph
8 PM
Rainy Night
48°
Feels Like 41°
40
Humidity: 60%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
45°
Feels Like 43°
37
Humidity: 67%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
43°
Feels Like 43°
34
Humidity: 74%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
41°
Feels Like 39°
34
Humidity: 78%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.72 µg/m³
  • PM10: 1.43 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
62 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.15 µg/m³
  • PM10: 1.84 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
68 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.45 µg/m³
  • PM10: 2.12 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

2 PM
72 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.71 µg/m³
  • PM10: 2.36 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
74 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.71 µg/m³
  • PM10: 2.31 µg/m³
  • O3: 0.062 ppm
  • NO2: 0.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
71 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.51 µg/m³
  • PM10: 2.06 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
69 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.51 µg/m³
  • PM10: 2.07 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

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

Pollutant Concentrations:

  • PM2.5: 1.76 µg/m³
  • PM10: 3.07 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 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: 2.15 µg/m³
  • PM10: 4.73 µg/m³
  • O3: 0.041 ppm
  • NO2: 5.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 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: 2.54 µg/m³
  • PM10: 6.5 µg/m³
  • O3: 0.035 ppm
  • NO2: 6.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.16 µg/m³
  • PM10: 8.23 µg/m³
  • O3: 0.031 ppm
  • NO2: 8.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.05 µg/m³
  • PM10: 9.83 µg/m³
  • O3: 0.026 ppm
  • NO2: 8.9 ppb
  • SO2: 1.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.91 µg/m³
  • PM10: 10.92 µg/m³
  • O3: 0.023 ppm
  • NO2: 9.2 ppb
  • SO2: 1.1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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