Hourly Weather | Today Wednesday, May 20, 2026
Chapel Hill, North Carolina
7 PM
Cloudy Weather
88°
Feels Like 88°
0
Humidity: 42%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Weather
84°
Feels Like 84°
0
Humidity: 48%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
82°
Feels Like 81°
0
Humidity: 50%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
81°
Feels Like 79°
0
Humidity: 55%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
77°
Feels Like 75°
0
Humidity: 61%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.09 µg/m³
  • PM10: 6.58 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.6 µg/m³
  • PM10: 5.75 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.87 µg/m³
  • PM10: 4.66 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.27 µg/m³
  • PM10: 3.84 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.98 µg/m³
  • PM10: 3.43 µg/m³
  • O3: 0.032 ppm
  • NO2: 1 ppb
  • SO2: 0.7 ppb
  • CO: 0.09 ppm

Health Recommendations:

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