Hourly Weather | Today Sunday, January 11, 2026
Active Weather Warnings
Louisville, Kentucky
9 AM
Cloudy Weather
28°
Feels Like 12°
47
Humidity: 68%
Wind: 18 mph
UV Index: 0
10 AM
Cloudy Weather
30°
Feels Like 12°
44
Humidity: 61%
Wind: 20 mph
UV Index: 1
11 AM
Snowy Weather
30°
Feels Like 14°
51
Humidity: 58%
Wind: 18 mph
UV Index: 1
12 PM
Cloudy Weather
32°
Feels Like 18°
44
Humidity: 54%
Wind: 17 mph
UV Index: 1
1 PM
Cloudy Weather
34°
Feels Like 19°
0
Humidity: 53%
Wind: 16 mph
UV Index: 1
2 PM
Cloudy Weather
34°
Feels Like 21°
0
Humidity: 51%
Wind: 15 mph
UV Index: 1
3 PM
Cloudy Weather
36°
Feels Like 23°
0
Humidity: 51%
Wind: 15 mph
UV Index: 0
4 PM
Cloudy Weather
36°
Feels Like 25°
0
Humidity: 50%
Wind: 15 mph
UV Index: 0
5 PM
Cloudy Weather
36°
Feels Like 23°
0
Humidity: 56%
Wind: 14 mph
UV Index: 0
6 PM
Cloudy Weather
34°
Feels Like 23°
0
Humidity: 62%
Wind: 12 mph
UV Index: 0
7 PM
Night
32°
Feels Like 28°
0
Humidity: 65%
Wind: 7 mph
UV Index: 0
8 PM
Night
30°
Feels Like 27°
0
Humidity: 71%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
28°
Feels Like 27°
0
Humidity: 76%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
28°
Feels Like 25°
0
Humidity: 79%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Night
28°
Feels Like 25°
0
Humidity: 79%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.05 µg/m³
  • PM10: 1.4 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.7 ppb
  • SO2: 1.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

10 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1 µg/m³
  • PM10: 1.33 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.9 ppb
  • SO2: 1.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.63 µg/m³
  • PM10: 0.92 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.6 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.65 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.3 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.61 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.2 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.73 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.2 ppb
  • SO2: 1.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.56 µg/m³
  • PM10: 0.89 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.3 ppb
  • SO2: 1.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 1.04 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.5 ppb
  • SO2: 1.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.76 µg/m³
  • PM10: 1.16 µg/m³
  • O3: 0.033 ppm
  • NO2: 2 ppb
  • SO2: 1.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 1.33 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.8 ppb
  • SO2: 1.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.05 µg/m³
  • PM10: 1.55 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.3 ppb
  • SO2: 1.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.26 µg/m³
  • PM10: 1.83 µg/m³
  • O3: 0.028 ppm
  • NO2: 3.6 ppb
  • SO2: 1.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.6 µg/m³
  • PM10: 2.24 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.9 ppb
  • SO2: 1.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2 µg/m³
  • PM10: 2.7 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.9 ppb
  • SO2: 1.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.4 µg/m³
  • PM10: 3.14 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.8 ppb
  • SO2: 1.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Louisville

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued January 10 at 9:18PM EST by NWS Louisville KY
Jan 10, 9:18 PM Jan 11, 11:00 AM
Scattered snow showers are expected Sunday morning along and
behind a cold front. Temperatures are forecast to drop below
freezing through the early to mid-morning hours behind this cold
front. A few of these snow showers could be heavier, causing a
rapid drop in visibility and a quick coating on roads. It will
also be quite blustery, with winds from the northwest gusting to
around 30 mph. The winds will also help limit visibility in snow,
creating briefly difficult travel conditions.

Elevated surfaces like bridges and overpasses will likely become
slick earlier. Anyone traveling Sunday morning should be prepared
for sudden visibility changes and potentially slick road surfaces.
Overall, snow accumulations will be light (half inch or less) and
quite localized in nature. Not everyone will see a dusting of
snow.
Updated: Jan 11, 7:34 AM Source: NWS Alert