Air Quality in Louisville, United States

Partly Cloudy
30.6°C · 50.9% humidity
30.6°
Feels 33.9°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast
34 10am
34
34
42 1pm
40
38
37 4pm
36
36
35 7pm
35
35
34 10pm
34
27
25 1am
24
24
24 4am
25
25
25 7am
25
25
AD 728×90

Air Quality Index Trend

46h · 2 stn

Louisville's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

50.9%
Humidity
32.7 km/h
Wind NNE
1011.7 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
9.99 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Louisville?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations
PM2.59.99 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (2 stations within 25 km)
9.99
Median
9.74
Average
9.12
Low
10.37
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +0.9

What is the 7-day forecast for Louisville?

07-21
30.6° 21.5°
4.19 mm
07-22
28.6° 22.8°
0.13 mm
07-23
21.3° 19.8°
3.94 mm
07-24
28.0° 20.3°
0.06 mm
07-25
24.4° 20.1°
14.37 mm
07-26
29.7° 20.5°
4.0 mm
07-27
28.9° 21.7°
4.0 mm
Both models agree Avg diff: 3.3°C

Where are air quality stations near Louisville?

43
Engine 15 Black Carbon Study
2.8 km PM2.5: 10.4 µg/m³
38
Maupin Elementary
4.2 km PM2.5: 9.1 µg/m³
49
Algonquin Parkway, Kentucky, USA
6.4 km PM2.5: 11.8 µg/m³
42
Algonquin Parkway, Kentucky, USA
6.4 km PM2.5: 10.1 µg/m³
20
Near Road
7.9 km PM2.5: 4.8 µg/m³
52
Near Road, Kentucky, USA
7.9 km PM2.5: 12.6 µg/m³
35
Cannons Lane, Kentucky, USA
9.6 km PM2.5: 8.4 µg/m³
70
Carrithers Middle School, Kentucky, USA
18.0 km PM2.5: 21.1 µg/m³
34
Carrithers Middle School, Kentucky, USA
18.0 km PM2.5: 8.2 µg/m³
68
Watson, Kentucky, USA
24.6 km PM2.5: 20.2 µg/m³

What cities are near Louisville?

41 Jeffersonville 41 Clarksville 40 New Albany 40 Shively 42 Saint Matthews 41 Newburg 41 Okolona 40 Pleasure Ridge Park 41 Highview 41 Jeffersontown
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:15 UTC.