Hourly Weather | Today Thursday, February 5, 2026
Bethlehem, Pennsylvania
10 PM
Cloudy Night
14°
Feels Like 14°
0
Humidity: 83%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
10°
Feels Like 10°
0
Frost Risk: 100%
Humidity: 92%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 21.83 µg/m³
  • PM10: 28.71 µg/m³
  • O3: 0.015 ppm
  • NO2: 22.1 ppb
  • SO2: 1.8 ppb
  • CO: 0.37 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 21.7 µg/m³
  • PM10: 28.42 µg/m³
  • O3: 0.014 ppm
  • NO2: 21.8 ppb
  • SO2: 1.7 ppb
  • CO: 0.37 ppm

Health Recommendations:

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