Hourly Weather | Today Tuesday, March 17, 2026
Allentown, Pennsylvania
6 AM
Cloudy Night
30°
Feels Like 12°
20
Humidity: 58%
UV Index: 0
Wind: 20 mph
7 AM
Cloudy Night
30°
Feels Like 12°
13
Humidity: 56%
UV Index: 0
Wind: 20 mph
8 AM
Cloudy Weather
34°
Feels Like 21°
0
Humidity: 50%
UV Index: 1
Wind: 15 mph
9 AM
Cloudy Weather
34°
Feels Like 21°
0
Humidity: 49%
UV Index: 1
Wind: 16 mph
10 AM
Cloudy Weather
34°
Feels Like 21°
0
Humidity: 45%
UV Index: 2
Wind: 16 mph
11 AM
Cloudy Weather
36°
Feels Like 25°
0
Humidity: 43%
UV Index: 3
Wind: 17 mph
12 PM
Cloudy Weather
36°
Feels Like 27°
0
Humidity: 40%
UV Index: 3
Wind: 18 mph
1 PM
Cloudy Weather
37°
Feels Like 27°
0
Humidity: 38%
UV Index: 3
Wind: 18 mph
2 PM
Cloudy Weather
37°
Feels Like 28°
44
Humidity: 36%
UV Index: 2
Wind: 16 mph
3 PM
Snowy Weather
39°
Feels Like 27°
51
Humidity: 35%
UV Index: 1
Wind: 16 mph
4 PM
Cloudy Weather
37°
Feels Like 27°
38
Humidity: 36%
UV Index: 1
Wind: 16 mph
5 PM
Snowy Weather
37°
Feels Like 25°
51
Humidity: 37%
UV Index: 1
Wind: 15 mph
6 PM
Cloudy Weather
36°
Feels Like 25°
44
Humidity: 38%
UV Index: 0
Wind: 14 mph
7 PM
Cloudy Weather
34°
Feels Like 25°
25
Humidity: 41%
UV Index: 0
Wind: 12 mph
8 PM
Cloudy Night
34°
Feels Like 25°
0
Humidity: 43%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Night
30°
Feels Like 23°
0
Humidity: 48%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Night
30°
Feels Like 23°
0
Humidity: 50%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
30°
Feels Like 23°
0
Humidity: 51%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.69 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

7 AM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.72 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 AM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.82 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.95 µg/m³
  • O3: 0.046 ppm
  • NO2: 2 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.94 µg/m³
  • O3: 0.046 ppm
  • NO2: 2 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.83 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.68 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.65 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.68 µg/m³
  • O3: 0.052 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.76 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.82 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.84 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.83 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.05 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.65 µg/m³
  • PM10: 1.3 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.86 µg/m³
  • PM10: 1.61 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.06 µg/m³
  • PM10: 1.93 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.15 µg/m³
  • PM10: 2.13 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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