Hourly Weather | Today Monday, September 14, 2026
Chattanooga, Tennessee
4 AM
Cloudy Night
72°
Feels Like 73°
0
Humidity: 91%
UV Index: 0
Wind: 2 mph
5 AM
Cloudy Night
70°
Feels Like 73°
0
Humidity: 94%
UV Index: 0
Wind: 2 mph
6 AM
Cloudy Night
70°
Feels Like 72°
0
Humidity: 96%
UV Index: 0
Wind: 2 mph
7 AM
Cloudy Night
68°
Feels Like 72°
0
Humidity: 99%
UV Index: 0
Wind: 2 mph
8 AM
Cloudy Weather
72°
Feels Like 75°
0
Humidity: 90%
UV Index: 1
Wind: 2 mph
9 AM
Cloudy Weather
75°
Feels Like 82°
0
Humidity: 79%
UV Index: 2
Wind: 4 mph
10 AM
Cloudy Weather
81°
Feels Like 88°
0
Humidity: 69%
UV Index: 3
Wind: 6 mph
11 AM
Cloudy Weather
84°
Feels Like 93°
0
Humidity: 61%
UV Index: 5
Wind: 6 mph
12 PM
Cloudy Weather
88°
Feels Like 97°
0
Humidity: 55%
UV Index: 6
Wind: 6 mph
1 PM
Cloudy Weather
90°
Feels Like 100°
0
Humidity: 50%
UV Index: 7
Wind: 7 mph
2 PM
Cloudy Weather
93°
Feels Like 102°
7
Humidity: 46%
UV Index: 6
Wind: 7 mph
3 PM
Cloudy Weather
95°
Feels Like 102°
7
Humidity: 43%
UV Index: 5
Wind: 7 mph
4 PM
Cloudy Weather
93°
Feels Like 100°
7
Humidity: 44%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
93°
Feels Like 99°
7
Humidity: 45%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
91°
Feels Like 97°
7
Humidity: 47%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
90°
Feels Like 91°
5
Humidity: 53%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
86°
Feels Like 90°
0
Humidity: 60%
UV Index: 0
Wind: 6 mph
9 PM
Night
82°
Feels Like 88°
0
Humidity: 68%
UV Index: 0
Wind: 6 mph
10 PM
Night
81°
Feels Like 84°
0
Humidity: 75%
UV Index: 0
Wind: 6 mph
11 PM
Night
79°
Feels Like 82°
0
Humidity: 79%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.72 µg/m³
  • PM10: 13.41 µg/m³
  • O3: 0.010 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.

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

Pollutant Concentrations:

  • PM2.5: 5.99 µg/m³
  • PM10: 14.16 µg/m³
  • O3: 0.009 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 AM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.16 µg/m³
  • PM10: 14.67 µg/m³
  • O3: 0.009 ppm
  • NO2: 2.4 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 AM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.33 µg/m³
  • PM10: 14.97 µg/m³
  • O3: 0.008 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.45 µg/m³
  • PM10: 15.08 µg/m³
  • O3: 0.007 ppm
  • NO2: 2.8 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
25 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.06 µg/m³
  • PM10: 14.34 µg/m³
  • O3: 0.007 ppm
  • NO2: 2.6 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.69 µg/m³
  • PM10: 13.51 µg/m³
  • O3: 0.008 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.8 µg/m³
  • PM10: 13.04 µg/m³
  • O3: 0.013 ppm
  • NO2: 2.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.49 µg/m³
  • PM10: 6.95 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.3 µg/m³
  • PM10: 6.28 µg/m³
  • O3: 0.049 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
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.23 µg/m³
  • PM10: 6.1 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.2 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
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.07 µg/m³
  • PM10: 5.86 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.2 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
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.88 µg/m³
  • PM10: 5.66 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.75 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 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: 4.8 µg/m³
  • PM10: 5.92 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 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: 4.94 µg/m³
  • PM10: 6.7 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.04 µg/m³
  • PM10: 7.4 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.08 µg/m³
  • PM10: 8.03 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.17 µg/m³
  • PM10: 8.57 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.27 µg/m³
  • PM10: 8.96 µg/m³
  • O3: 0.025 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.