Hourly Weather | Today Wednesday, December 24, 2025
Bethlehem, Pennsylvania
3 PM
Cloudy Weather
41°
Feels Like 32°
0
Humidity: 50%
Wind: 14 mph
UV Index: 1
4 PM
Cloudy Weather
39°
Feels Like 30°
0
Humidity: 56%
Wind: 13 mph
UV Index: 0
5 PM
Cloudy Night
37°
Feels Like 28°
0
Humidity: 60%
Wind: 10 mph
UV Index: 0
6 PM
Cloudy Night
36°
Feels Like 27°
0
Humidity: 65%
Wind: 10 mph
UV Index: 0
7 PM
Cloudy Night
32°
Feels Like 30°
0
Humidity: 71%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
28°
Feels Like 28°
0
Humidity: 79%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
27°
Feels Like 25°
0
Humidity: 89%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
28°
Feels Like 28°
0
Humidity: 80%
Wind: 5 mph
UV Index: 0
11 PM
Cloudy Night
30°
Feels Like 30°
0
Humidity: 76%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.27 µg/m³
  • PM10: 2.03 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.41 µg/m³
  • PM10: 2.31 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.91 µg/m³
  • PM10: 3.23 µg/m³
  • O3: 0.030 ppm
  • NO2: 6.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.05 µg/m³
  • PM10: 5.18 µg/m³
  • O3: 0.023 ppm
  • NO2: 11.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

7 PM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.64 µg/m³
  • PM10: 7.78 µg/m³
  • O3: 0.017 ppm
  • NO2: 15.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

8 PM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.42 µg/m³
  • PM10: 10.61 µg/m³
  • O3: 0.012 ppm
  • NO2: 18.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.30 ppm

Health Recommendations:

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

9 PM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.35 µg/m³
  • PM10: 13.57 µg/m³
  • O3: 0.008 ppm
  • NO2: 21.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.33 ppm

Health Recommendations:

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

10 PM
43 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.42 µg/m³
  • PM10: 16.6 µg/m³
  • O3: 0.005 ppm
  • NO2: 23.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.36 ppm

Health Recommendations:

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

11 PM
49 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.83 µg/m³
  • PM10: 18.54 µg/m³
  • O3: 0.003 ppm
  • NO2: 24.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.38 ppm

Health Recommendations:

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