Hourly Weather | Today › Friday, October 30, 2026
Knoxville, Tennessee
3 PM
Cloudy Weather
77°
Feels Like 79°
0
Humidity: 39%
UV Index: 3
Wind: 7 mph
4 PM
Cloudy Weather
79°
Feels Like 79°
0
Humidity: 38%
UV Index: 2
Wind: 7 mph
5 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 41%
UV Index: 1
Wind: 7 mph
6 PM
Cloudy Weather
73°
Feels Like 72°
0
Humidity: 47%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 55%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 61%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
64°
Feels Like 64°
0
Humidity: 69%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 77%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 77%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.84 µg/m³
  • PM10: 12.15 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

4 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.41 µg/m³
  • PM10: 10.37 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 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.

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

Pollutant Concentrations:

  • PM2.5: 8.6 µg/m³
  • PM10: 10.62 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.6 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
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.38 µg/m³
  • PM10: 12.11 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 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: 10.31 µg/m³
  • PM10: 14.14 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.07 µg/m³
  • PM10: 15.93 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.4 µg/m³
  • PM10: 16.98 µg/m³
  • O3: 0.034 ppm
  • NO2: 4.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.67 µg/m³
  • PM10: 17.76 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.86 µg/m³
  • PM10: 18.28 µg/m³
  • O3: 0.025 ppm
  • NO2: 4.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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