Louisville air quality · Kentucky, United States
This is what breathable city air is supposed to feel like
US AQI 48 (Good) in Louisville, from 1 AirNow monitoring station. Main pollutant: PM2.5.
Updated
Pollutants in Louisville
- PM2.548AQI
- PM1033AQI
- Ozone6AQI
- NO₂16AQI
- SO₂1AQI
US values are per-pollutant AQI from the highest-reading monitor near Louisville (Near Road).
Is it safe outside in Louisville right now?
Air quality is satisfactory and poses little or no risk.
Walking and commuting
Go aheadEnjoy it.
Running and jogging
Go aheadA great time to run outdoors.
Cycling
Go aheadRide freely.
Children playing outside
Go aheadNo limits.
Older adults and heart or lung conditions
Go aheadNo limits.
Open windows
Go aheadAir out your home.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededNot needed.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 0–50 means for your health →
Louisville air quality history
Daily average, 36 days- 48average daily US AQI over 36 days
- 69worst day, 18 September
- 24cleanest day, 17 October
- 0days at Unhealthy or worse
The last 7 days averaged 46, about the same as the week before (48). 20 of the last 36 days were Good.
Weather in Louisville
No active National Weather Service alerts for Louisville.
| Day | Forecast | High | Low | Rain |
|---|---|---|---|---|
| Mon 19 | Sunny | 70°F | 43°F | 0% |
| Tue 20 | Sunny | 72°F | 45°F | 0% |
| Wed 21 | Sunny | 72°F | 46°F | 0% |
| Thu 22 | Sunny | 72°F | 46°F | 0% |
| Fri 23 | Sunny | 72°F | 46°F | 0% |
| Sat 24 | Sunny | 73°F | 48°F | 0% |
| Sun 25 | Mostly Sunny | 75°F | 48°F | 0% |
National Weather Service forecast. All US weather alerts →
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Louisville air quality: common questions
What is the AQI in Louisville right now?
The US AQI in Louisville is 48 (Good). The main pollutant is PM2.5.
Is it safe to go outside in Louisville today?
A great time to be outside. Air quality is satisfactory and poses little or no risk. For runners: A great time to run outdoors.
How has air quality in Louisville been recently?
Over the last 36 days with data, Louisville averaged US AQI 48. The worst day was 18 September at 69; the cleanest was 17 October at 24. 0 days were at Unhealthy or worse.
Where does Louisville's air quality data come from?
From US EPA AirNow, using 1 monitoring station in and around the city. Good Air does not estimate or adjust these readings.
Source: US EPA AirNow. Readings are published by the monitoring agency and may be revised.