Today | Weather | Monday, December 15, 2025

Weather in Louisville, Kentucky

03:13 PM
Now
Cloudy Weather
30° F
Feels Like 25°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 1
Humidity 43 %
Today
Cloudy Weather
Day 32°
Night 21°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2

Louisville Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 15, 2024)
Rainy Weather

Day

57°

Night

52°

Wind

7 mph

Precipitation

90 %

Air Quality in Louisville

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.8 µg/m³
PM10 3.39 µg/m³
O3 0.036 ppm
NO2 1.9 ppb
SO2 1.2 ppb
CO 0.13 ppm
NH3 0.54 µg/m³
NO 1.1 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.52.8 µg/m³
PM103.39 µg/m³
O371.41 µg/m³
NO23.64 µg/m³
SO23.2 µg/m³
CO146.44 µg/m³
NH30.54 µg/m³
NO1.1 µg/m³