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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today | Sunday, August 31, 2025
Louisville, Kentucky
3 AM
NightNighttime, with dark skies and stars or a moon visible.
59°
Feels Like 57°
0
Humidity: 71%
Wind: 6 mph
UV Index: 0
4 AM
NightNighttime, with dark skies and stars or a moon visible.
57°
Feels Like 55°
0
Humidity: 77%
Wind: 6 mph
UV Index: 0
5 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
55°
Feels Like 55°
0
Humidity: 83%
Wind: 5 mph
UV Index: 0
6 AM
Cloudy NightCloudy night, overcast skies at night with no rain.
55°
Feels Like 54°
0
Humidity: 85%
Wind: 5 mph
UV Index: 0
7 AM
NightNighttime, with dark skies and stars or a moon visible.
54°
Feels Like 54°
0
Humidity: 86%
Wind: 5 mph
UV Index: 0
8 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
55°
Feels Like 57°
0
Humidity: 80%
Wind: 6 mph
UV Index: 14
9 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
61°
Feels Like 63°
0
Humidity: 72%
Wind: 6 mph
UV Index: 24
10 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
64°
Feels Like 70°
0
Humidity: 65%
Wind: 6 mph
UV Index: 37
11 AM
Cloudy WeatherCloudy weather, overcast skies with clouds.
68°
Feels Like 73°
0
Humidity: 58%
Wind: 7 mph
UV Index: 50
12 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
72°
Feels Like 79°
0
Humidity: 51%
Wind: 7 mph
UV Index: 68
1 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
73°
Feels Like 81°
0
Humidity: 44%
Wind: 8 mph
UV Index: 75
2 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
77°
Feels Like 82°
0
Humidity: 39%
Wind: 8 mph
UV Index: 68
3 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
79°
Feels Like 82°
0
Humidity: 37%
Wind: 8 mph
UV Index: 50
4 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 82°
0
Humidity: 34%
Wind: 9 mph
UV Index: 37
5 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
81°
Feels Like 81°
0
Humidity: 35%
Wind: 9 mph
UV Index: 24
6 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
79°
Feels Like 79°
0
Humidity: 37%
Wind: 8 mph
UV Index: 14
7 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
77°
Feels Like 75°
0
Humidity: 41%
Wind: 8 mph
UV Index: 4
8 PM
Cloudy WeatherCloudy weather, overcast skies with clouds.
73°
Feels Like 72°
0
Humidity: 46%
Wind: 7 mph
UV Index: 0
9 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
72°
Feels Like 68°
0
Humidity: 52%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
68°
Feels Like 66°
0
Humidity: 58%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy NightCloudy night, overcast skies at night with no rain.
66°
Feels Like 63°
0
Humidity: 63%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.23 µg/m³
  • PM10: 8.63 µg/m³
  • O₃: 35.65 ppb
  • NO₂: 6.13 ppb
  • SO₂: 2.08 ppb
  • CO: 148.46 ppb

Health Recommendations:

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

4 AM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.42 µg/m³
  • PM10: 7.36 µg/m³
  • O₃: 33.27 ppb
  • NO₂: 5.77 ppb
  • SO₂: 2.04 ppb
  • CO: 150.62 ppb

Health Recommendations:

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

5 AM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 4.88 µg/m³
  • PM10: 6.50 µg/m³
  • O₃: 30.90 ppb
  • NO₂: 5.54 ppb
  • SO₂: 1.96 ppb
  • CO: 151.61 ppb

Health Recommendations:

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

6 AM
49 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.39 µg/m³
  • PM10: 3.46 µg/m³
  • O₃: 26.91 ppb
  • NO₂: 4.38 ppb
  • SO₂: 2.11 ppb
  • CO: 163.65 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

7 AM
48 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.39 µg/m³
  • PM10: 3.45 µg/m³
  • O₃: 25.41 ppb
  • NO₂: 4.55 ppb
  • SO₂: 1.95 ppb
  • CO: 165.41 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

8 AM
46 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 3.65 µg/m³
  • PM10: 3.71 µg/m³
  • O₃: 23.90 ppb
  • NO₂: 4.72 ppb
  • SO₂: 1.80 ppb
  • CO: 167.17 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

9 AM
45 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 4.14 µg/m³
  • PM10: 4.22 µg/m³
  • O₃: 30.76 ppb
  • NO₂: 3.96 ppb
  • SO₂: 2.73 ppb
  • CO: 167.74 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

10 AM
44 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.03 µg/m³
  • PM10: 5.14 µg/m³
  • O₃: 37.61 ppb
  • NO₂: 3.19 ppb
  • SO₂: 3.66 ppb
  • CO: 168.31 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

11 AM
44 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.55 µg/m³
  • PM10: 6.69 µg/m³
  • O₃: 44.46 ppb
  • NO₂: 2.43 ppb
  • SO₂: 4.59 ppb
  • CO: 168.88 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

12 PM
44 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.23 µg/m³
  • PM10: 8.41 µg/m³
  • O₃: 51.29 ppb
  • NO₂: 1.94 ppb
  • SO₂: 4.75 ppb
  • CO: 162.66 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

1 PM
43 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.59 µg/m³
  • PM10: 8.78 µg/m³
  • O₃: 58.12 ppb
  • NO₂: 1.46 ppb
  • SO₂: 4.92 ppb
  • CO: 156.44 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

2 PM
43 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.56 µg/m³
  • PM10: 8.73 µg/m³
  • O₃: 64.95 ppb
  • NO₂: 0.98 ppb
  • SO₂: 5.08 ppb
  • CO: 150.22 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

3 PM
43 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 8.71 µg/m³
  • PM10: 8.88 µg/m³
  • O₃: 65.61 ppb
  • NO₂: 1.00 ppb
  • SO₂: 4.79 ppb
  • CO: 148.39 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

4 PM
48 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.08 µg/m³
  • PM10: 9.25 µg/m³
  • O₃: 66.27 ppb
  • NO₂: 1.01 ppb
  • SO₂: 4.50 ppb
  • CO: 146.56 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

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

Pollutant Concentrations:

  • PM2.5: 9.40 µg/m³
  • PM10: 9.59 µg/m³
  • O₃: 66.93 ppb
  • NO₂: 1.03 ppb
  • SO₂: 4.21 ppb
  • CO: 144.73 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
67 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.66 µg/m³
  • PM10: 9.87 µg/m³
  • O₃: 62.53 ppb
  • NO₂: 1.89 ppb
  • SO₂: 3.98 ppb
  • CO: 149.32 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
72 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.85 µg/m³
  • PM10: 10.04 µg/m³
  • O₃: 58.13 ppb
  • NO₂: 2.76 ppb
  • SO₂: 3.76 ppb
  • CO: 153.92 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
73 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.32 µg/m³
  • PM10: 10.48 µg/m³
  • O₃: 53.73 ppb
  • NO₂: 3.62 ppb
  • SO₂: 3.53 ppb
  • CO: 158.52 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
70 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.09 µg/m³
  • PM10: 10.21 µg/m³
  • O₃: 48.82 ppb
  • NO₂: 3.86 ppb
  • SO₂: 3.23 ppb
  • CO: 159.20 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
61 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.10 µg/m³
  • PM10: 9.19 µg/m³
  • O₃: 43.91 ppb
  • NO₂: 4.10 ppb
  • SO₂: 2.94 ppb
  • CO: 159.88 ppb

Health Recommendations:

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

Current Real-Time Air Quality Report