Hourly Weather | Today Wednesday, August 12, 2026
Chapel Hill, North Carolina
9 AM
Cloudy Weather
75°
Feels Like 82°
7
Humidity: 82%
UV Index: 3
Wind: 6 mph
10 AM
Cloudy Weather
79°
Feels Like 88°
7
Humidity: 71%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
82°
Feels Like 93°
7
Humidity: 67%
UV Index: 7
Wind: 7 mph
12 PM
Cloudy Weather
84°
Feels Like 97°
7
Humidity: 61%
UV Index: 9
Wind: 7 mph
1 PM
Cloudy Weather
88°
Feels Like 99°
11
Humidity: 57%
UV Index: 10
Wind: 7 mph
2 PM
Cloudy Weather
88°
Feels Like 100°
19
Humidity: 54%
UV Index: 9
Wind: 7 mph
3 PM
Cloudy Weather
90°
Feels Like 100°
19
Humidity: 52%
UV Index: 7
Wind: 7 mph
4 PM
Cloudy Weather
91°
Feels Like 100°
24
Humidity: 50%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
90°
Feels Like 97°
43
Humidity: 52%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
90°
Feels Like 95°
47
Humidity: 54%
UV Index: 2
Wind: 7 mph
7 PM
Sunny with a Chance of Thunderstorms
86°
Feels Like 90°
51
Humidity: 62%
UV Index: 1
Wind: 6 mph
8 PM
Sunny with a Chance of Thunderstorms
82°
Feels Like 86°
51
Humidity: 69%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
81°
Feels Like 86°
47
Humidity: 75%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
79°
Feels Like 82°
40
Humidity: 82%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
77°
Feels Like 82°
34
Humidity: 85%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 7.95 µg/m³
  • O3: 0.008 ppm
  • NO2: 1.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

10 AM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.18 µg/m³
  • PM10: 7.88 µg/m³
  • O3: 0.012 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 AM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.48 µg/m³
  • PM10: 7.98 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.53 µg/m³
  • PM10: 4.42 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.75 µg/m³
  • PM10: 3.28 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 3.09 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.61 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.54 µg/m³
  • PM10: 2.8 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.56 µg/m³
  • PM10: 2.79 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 3.21 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.69 µg/m³
  • PM10: 3.88 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 4.36 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.47 µg/m³
  • PM10: 4.73 µg/m³
  • O3: 0.026 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.38 µg/m³
  • PM10: 5.26 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.35 µg/m³
  • PM10: 5.83 µg/m³
  • O3: 0.018 ppm
  • NO2: 2.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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