Hourly Weather | Today Tuesday, September 1, 2026
Chapel Hill, North Carolina
12 PM
Cloudy Weather
88°
Feels Like 102°
1
Humidity: 59%
UV Index: 7
Wind: 6 mph
1 PM
Cloudy Weather
91°
Feels Like 106°
1
Humidity: 53%
UV Index: 8
Wind: 5 mph
2 PM
Cloudy Weather
93°
Feels Like 106°
0
Humidity: 49%
UV Index: 7
Wind: 5 mph
3 PM
Cloudy Weather
95°
Feels Like 106°
0
Humidity: 45%
UV Index: 5
Wind: 5 mph
4 PM
Cloudy Weather
97°
Feels Like 104°
0
Humidity: 41%
UV Index: 4
Wind: 6 mph
5 PM
Cloudy Weather
95°
Feels Like 100°
0
Humidity: 43%
UV Index: 2
Wind: 6 mph
6 PM
Cloudy Weather
91°
Feels Like 99°
0
Humidity: 48%
UV Index: 1
Wind: 5 mph
7 PM
Cloudy Weather
90°
Feels Like 95°
0
Humidity: 53%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
88°
Feels Like 93°
0
Humidity: 61%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
84°
Feels Like 90°
0
Humidity: 66%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
82°
Feels Like 88°
0
Humidity: 71%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
81°
Feels Like 84°
0
Humidity: 75%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.83 µg/m³
  • PM10: 6.85 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.7 µg/m³
  • PM10: 6.38 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.81 µg/m³
  • PM10: 6.44 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.02 µg/m³
  • PM10: 6.63 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.17 µg/m³
  • PM10: 6.8 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

5 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.26 µg/m³
  • PM10: 6.93 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.47 µg/m³
  • PM10: 7.73 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.72 µg/m³
  • PM10: 8.99 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 10.04 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 10.53 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.87 µg/m³
  • PM10: 10.49 µg/m³
  • O3: 0.023 ppm
  • NO2: 3.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.8 µg/m³
  • PM10: 9.97 µg/m³
  • O3: 0.021 ppm
  • NO2: 3.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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