Hourly Weather | Today Sunday, November 23, 2025
Knoxville, Tennessee
2 PM
Cloudy Weather
64°
Feels Like 68°
0
Humidity: 46%
Wind: 5 mph
UV Index: 2
3 PM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 45%
Wind: 5 mph
UV Index: 2
4 PM
Cloudy Weather
63°
Feels Like 64°
0
Humidity: 49%
Wind: 5 mph
UV Index: 1
5 PM
Cloudy Weather
61°
Feels Like 61°
0
Humidity: 54%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
57°
Feels Like 57°
0
Humidity: 62%
Wind: 5 mph
UV Index: 0
7 PM
Night
55°
Feels Like 54°
0
Humidity: 71%
Wind: 5 mph
UV Index: 0
8 PM
Night
54°
Feels Like 52°
0
Humidity: 76%
Wind: 6 mph
UV Index: 0
9 PM
Night
50°
Feels Like 48°
0
Humidity: 82%
Wind: 6 mph
UV Index: 0
10 PM
Night
48°
Feels Like 46°
0
Humidity: 86%
Wind: 6 mph
UV Index: 0
11 PM
Night
46°
Feels Like 45°
0
Humidity: 89%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.25 µg/m³
  • PM10: 5.85 µg/m³
  • O3: 0.035 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.31 µg/m³
  • PM10: 5.98 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.6 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
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.1 µg/m³
  • PM10: 5.85 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.96 µg/m³
  • PM10: 6.04 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.08 µg/m³
  • PM10: 6.6 µg/m³
  • O3: 0.029 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.

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

Pollutant Concentrations:

  • PM2.5: 5.31 µg/m³
  • PM10: 7.17 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.6 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
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.41 µg/m³
  • PM10: 7.38 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.8 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.64 µg/m³
  • PM10: 7.64 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.8 ppb
  • SO2: 0 ppb
  • CO: 0.15 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6 µg/m³
  • PM10: 8.06 µg/m³
  • O3: 0.018 ppm
  • NO2: 2.9 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.37 µg/m³
  • PM10: 8.52 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.9 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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