Hourly Weather | Today Thursday, December 4, 2025
Chattanooga, Tennessee
6 AM
Cloudy Night
30°
Feels Like 32°
0
Humidity: 91%
Wind: 4 mph
UV Index: 0
7 AM
Cloudy Weather
34°
Feels Like 34°
1
Humidity: 84%
Wind: 4 mph
UV Index: 0
8 AM
Cloudy Weather
34°
Feels Like 34°
1
Humidity: 89%
Wind: 5 mph
UV Index: 0
9 AM
Cloudy Weather
36°
Feels Like 36°
1
Humidity: 85%
Wind: 5 mph
UV Index: 1
10 AM
Cloudy Weather
39°
Feels Like 37°
1
Humidity: 78%
Wind: 6 mph
UV Index: 1
11 AM
Cloudy Weather
43°
Feels Like 43°
1
Humidity: 69%
Wind: 6 mph
UV Index: 1
12 PM
Cloudy Weather
45°
Feels Like 46°
2
Humidity: 61%
Wind: 5 mph
UV Index: 1
1 PM
Cloudy Weather
46°
Feels Like 48°
5
Humidity: 56%
Wind: 5 mph
UV Index: 1
2 PM
Cloudy Weather
46°
Feels Like 48°
5
Humidity: 55%
Wind: 6 mph
UV Index: 1
3 PM
Cloudy Weather
48°
Feels Like 48°
6
Humidity: 55%
Wind: 6 mph
UV Index: 1
4 PM
Cloudy Weather
46°
Feels Like 45°
7
Humidity: 58%
Wind: 6 mph
UV Index: 0
5 PM
Cloudy Weather
46°
Feels Like 43°
7
Humidity: 62%
Wind: 6 mph
UV Index: 0
6 PM
Cloudy Night
45°
Feels Like 43°
11
Humidity: 67%
Wind: 6 mph
UV Index: 0
7 PM
Cloudy Weather
43°
Feels Like 41°
18
Humidity: 72%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Weather
41°
Feels Like 39°
18
Humidity: 79%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Weather
41°
Feels Like 39°
23
Humidity: 83%
Wind: 5 mph
UV Index: 0
10 PM
Rainy Weather
39°
Feels Like 36°
70
Humidity: 85%
Wind: 5 mph
UV Index: 0
11 PM
Rainy Weather
39°
Feels Like 36°
70
Humidity: 87%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.66 µg/m³
  • PM10: 19.96 µg/m³
  • O3: 0.015 ppm
  • NO2: 6.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

7 AM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.33 µg/m³
  • PM10: 20.51 µg/m³
  • O3: 0.013 ppm
  • NO2: 6.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

8 AM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.71 µg/m³
  • PM10: 20.57 µg/m³
  • O3: 0.012 ppm
  • NO2: 7 ppb
  • SO2: 0 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

9 AM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.78 µg/m³
  • PM10: 20.42 µg/m³
  • O3: 0.011 ppm
  • NO2: 7.7 ppb
  • SO2: 0 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

10 AM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.66 µg/m³
  • PM10: 20.05 µg/m³
  • O3: 0.012 ppm
  • NO2: 7.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

11 AM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.52 µg/m³
  • PM10: 17.13 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

12 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.07 µg/m³
  • PM10: 16.28 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

1 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.6 µg/m³
  • PM10: 15.55 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

2 PM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.92 µg/m³
  • PM10: 13.51 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.43 µg/m³
  • PM10: 11.84 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

4 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.78 µg/m³
  • PM10: 11.16 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.64 µg/m³
  • PM10: 11.12 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.87 µg/m³
  • PM10: 11.55 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.24 µg/m³
  • PM10: 12.1 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.69 µg/m³
  • PM10: 12.7 µg/m³
  • O3: 0.028 ppm
  • NO2: 5.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.35 µg/m³
  • PM10: 13.47 µg/m³
  • O3: 0.026 ppm
  • NO2: 5.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.15 µg/m³
  • PM10: 14.34 µg/m³
  • O3: 0.026 ppm
  • NO2: 4.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.78 µg/m³
  • PM10: 14.9 µg/m³
  • O3: 0.026 ppm
  • NO2: 4.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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