Hourly Weather | Today › Sunday, October 4, 2026
Chattanooga, Tennessee
8 AM
Cloudy Weather
70°
Feels Like 73°
39
Humidity: 97%
UV Index: 0
Wind: 2 mph
9 AM
Cloudy Weather
72°
Feels Like 75°
34
Humidity: 94%
UV Index: 0
Wind: 4 mph
10 AM
Cloudy Weather
73°
Feels Like 79°
39
Humidity: 92%
UV Index: 1
Wind: 4 mph
11 AM
Cloudy Weather
73°
Feels Like 79°
49
Humidity: 89%
UV Index: 1
Wind: 4 mph
12 PM
Stormy Weather
73°
Feels Like 75°
61
Humidity: 88%
UV Index: 1
Wind: 5 mph
1 PM
Stormy Weather
75°
Feels Like 77°
61
Humidity: 85%
UV Index: 1
Wind: 5 mph
2 PM
Stormy Weather
75°
Feels Like 79°
54
Humidity: 84%
UV Index: 1
Wind: 5 mph
3 PM
Cloudy Weather
75°
Feels Like 81°
49
Humidity: 83%
UV Index: 1
Wind: 5 mph
4 PM
Cloudy Weather
77°
Feels Like 81°
49
Humidity: 81%
UV Index: 1
Wind: 5 mph
5 PM
Stormy Weather
75°
Feels Like 77°
54
Humidity: 84%
UV Index: 0
Wind: 5 mph
6 PM
Cloudy Weather
75°
Feels Like 79°
49
Humidity: 84%
UV Index: 0
Wind: 5 mph
7 PM
Cloudy Weather
73°
Feels Like 79°
37
Humidity: 87%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
73°
Feels Like 77°
20
Humidity: 90%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
72°
Feels Like 75°
20
Humidity: 92%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
72°
Feels Like 75°
20
Humidity: 92%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
72°
Feels Like 75°
20
Humidity: 93%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
14 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.46 µg/m³
  • PM10: 4.5 µg/m³
  • O3: 0.005 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.

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 4.2 µg/m³
  • O3: 0.005 ppm
  • NO2: 2.8 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
13 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 4.03 µg/m³
  • O3: 0.005 ppm
  • NO2: 2.8 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
12 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.97 µg/m³
  • PM10: 3.86 µg/m³
  • O3: 0.006 ppm
  • NO2: 2.6 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
11 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.69 µg/m³
  • PM10: 3.52 µg/m³
  • O3: 0.008 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.

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

Pollutant Concentrations:

  • PM2.5: 2.59 µg/m³
  • PM10: 3.57 µg/m³
  • O3: 0.009 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.010 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.

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

Pollutant Concentrations:

  • PM2.5: 2.71 µg/m³
  • PM10: 4 µg/m³
  • O3: 0.012 ppm
  • NO2: 2.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.84 µg/m³
  • PM10: 4.24 µg/m³
  • O3: 0.013 ppm
  • NO2: 3.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.93 µg/m³
  • PM10: 4.41 µg/m³
  • O3: 0.012 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.

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

Pollutant Concentrations:

  • PM2.5: 3.04 µg/m³
  • PM10: 4.55 µg/m³
  • O3: 0.011 ppm
  • NO2: 3.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.13 µg/m³
  • PM10: 4.59 µg/m³
  • O3: 0.009 ppm
  • NO2: 3.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.22 µg/m³
  • PM10: 4.45 µg/m³
  • O3: 0.008 ppm
  • NO2: 3.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.33 µg/m³
  • PM10: 4.29 µg/m³
  • O3: 0.008 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.5 µg/m³
  • PM10: 4.44 µg/m³
  • O3: 0.007 ppm
  • NO2: 3 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.65 µg/m³
  • PM10: 4.6 µg/m³
  • O3: 0.006 ppm
  • NO2: 2.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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