Hourly Weather | Today › Saturday, October 24, 2026
Allentown, Pennsylvania
9 PM
Night
46°
Feels Like 46°
0
Humidity: 57%
UV Index: 0
Wind: 4 mph
10 PM
Night
43°
Feels Like 45°
0
Humidity: 74%
UV Index: 0
Wind: 4 mph
11 PM
Night
39°
Feels Like 39°
0
Humidity: 90%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 PM
68 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 20.39 µg/m³
  • PM10: 25.47 µg/m³
  • O3: 0.023 ppm
  • NO2: 10.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

10 PM
70 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 21.48 µg/m³
  • PM10: 26.87 µg/m³
  • O3: 0.022 ppm
  • NO2: 10.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

11 PM
73 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 22.82 µg/m³
  • PM10: 28.42 µg/m³
  • O3: 0.021 ppm
  • NO2: 10.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.24 ppm

Health Recommendations:

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