Hourly Weather | Today | Friday, August 15, 2025
Knoxville, Tennessee
1 PM
Stormy WeatherStormy weather, thunderstorms.
84°
Feels Like 91°
51
Humidity: 66%
Wind: 5 mph
UV Index: 23
2 PM
Stormy WeatherStormy weather, thunderstorms.
88°
Feels Like 93°
51
Humidity: 61%
Wind: 5 mph
UV Index: 22
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 99°
47
Humidity: 55%
Wind: 6 mph
UV Index: 46
4 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
91°
Feels Like 99°
40
Humidity: 52%
Wind: 7 mph
UV Index: 40
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
90°
Feels Like 97°
34
Humidity: 53%
Wind: 7 mph
UV Index: 28
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
88°
Feels Like 93°
34
Humidity: 55%
Wind: 6 mph
UV Index: 17
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
86°
Feels Like 91°
34
Humidity: 61%
Wind: 6 mph
UV Index: 7
8 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
82°
Feels Like 88°
34
Humidity: 69%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
82°
Feels Like 88°
34
Humidity: 73%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
81°
Feels Like 84°
40
Humidity: 77%
Wind: 5 mph
UV Index: 0
11 PM
Stormy WeatherStormy weather, thunderstorms.
79°
Feels Like 81°
51
Humidity: 82%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

1 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.74 µg/m³
  • PM10: 11.01 µg/m³
  • O₃: 68.33 ppb
  • NO₂: 0.87 ppb
  • SO₂: 0.81 ppb
  • CO: 209.10 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

2 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.22 µg/m³
  • PM10: 10.49 µg/m³
  • O₃: 68.47 ppb
  • NO₂: 0.70 ppb
  • SO₂: 0.78 ppb
  • CO: 198.40 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

3 PM
55 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.02 µg/m³
  • PM10: 10.30 µg/m³
  • O₃: 67.87 ppb
  • NO₂: 0.78 ppb
  • SO₂: 0.75 ppb
  • CO: 198.33 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

4 PM
70 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.18 µg/m³
  • PM10: 10.45 µg/m³
  • O₃: 67.28 ppb
  • NO₂: 0.87 ppb
  • SO₂: 0.71 ppb
  • CO: 198.27 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

5 PM
85 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.30 µg/m³
  • PM10: 10.57 µg/m³
  • O₃: 66.69 ppb
  • NO₂: 0.95 ppb
  • SO₂: 0.68 ppb
  • CO: 198.21 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

6 PM
90 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.55 µg/m³
  • PM10: 10.82 µg/m³
  • O₃: 60.89 ppb
  • NO₂: 2.65 ppb
  • SO₂: 0.66 ppb
  • CO: 219.01 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
84 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 11.40 µg/m³
  • PM10: 11.62 µg/m³
  • O₃: 55.09 ppb
  • NO₂: 4.35 ppb
  • SO₂: 0.65 ppb
  • CO: 239.82 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

8 PM
77 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 12.81 µg/m³
  • PM10: 13.03 µg/m³
  • O₃: 49.29 ppb
  • NO₂: 6.05 ppb
  • SO₂: 0.63 ppb
  • CO: 260.62 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

9 PM
66 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 14.99 µg/m³
  • PM10: 15.21 µg/m³
  • O₃: 41.83 ppb
  • NO₂: 8.08 ppb
  • SO₂: 0.66 ppb
  • CO: 293.53 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

10 PM
58 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.47 µg/m³
  • PM10: 15.64 µg/m³
  • O₃: 34.38 ppb
  • NO₂: 10.11 ppb
  • SO₂: 0.69 ppb
  • CO: 326.44 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

11 PM
59 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 16.40 µg/m³
  • PM10: 16.56 µg/m³
  • O₃: 26.92 ppb
  • NO₂: 12.14 ppb
  • SO₂: 0.71 ppb
  • CO: 359.35 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.