Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in St Louis
Air quality index (AQI) and PM2.5 air pollution in St Louis
1.9K people follow this city
St Louis Air Quality Map
Real-time St Louis air pollution map
AIR QUALITY DATA CONTRIBUTORS
4 Contributors
See all
Pollen
What is the pollen count in St Louis today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Weather
What is the current weather in St Louis?
| Weather | Broken clouds |
| Temperature | 73.4°F |
| Humidity | 73% |
| Wind | 11.5 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Greenville, South Carolina | 84 |
| 2 | New Braunfels, Texas | 75 |
| 3 | Durham, North Carolina | 72 |
| 4 | Bryson City, North Carolina | 71 |
| 5 | Maryville, Tennessee | 69 |
| 6 | San Antonio, Texas | 67 |
| 7 | Chapel Hill, North Carolina | 65 |
| 8 | Georgetown, Texas | 65 |
| 9 | Austin, Texas | 64 |
| 10 | Gatlinburg, Tennessee | 64 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live St Louis aqi ranking
Real-time St Louis air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Shaw | 29 |
| 2 | Hyde Park | 25 |
| 3 | Central West End | 24 |
| 4 | Pershing Place | 21 |
(local time)
SEE WORLD AQI RANKING
US AQI
25
live AQI index
Good
Overview
What is the current air quality in St Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 25 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6µg/m³ | |
!
PM2.5
x1.2
PM2.5 concentration in St Louis is currently 1.2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in St Louis?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
St Louis air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Saturday, Apr 13 | Good 23 AQI US |  | 84.2° 60.8° |  11.2 mp/h |
| Sunday, Apr 14 | Good 34 AQI US | | 84.2° 62.6° | 8.9 mp/h |
| Monday, Apr 15 | Good 31 AQI US | | 78.8° 64.4° | 20.1 mp/h |
| Today | Good 25 AQI US | 90% | 78.8° 64.4° | 20.1 mp/h |
| Wednesday, Apr 17 | Good 29 AQI US |  | 75.2° 60.8° | 20.1 mp/h |
| Thursday, Apr 18 | Good 25 AQI US | 100% | 73.4° 51.8° | 15.7 mp/h |
| Friday, Apr 19 | Good 28 AQI US | | 60.8° 46.4° | 13.4 mp/h |
| Saturday, Apr 20 | Good 6 AQI US |  | 55.4° 44.6° | 13.4 mp/h |
| Sunday, Apr 21 | Good 7 AQI US | | 55.4° 37.4° | 8.9 mp/h |
| Monday, Apr 22 | Good 9 AQI US | | 64.4° 41° | 8.9 mp/h |
| Tuesday, Apr 23 | Good 16 AQI US | 40% | 60.8° 46.4° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
St Louis air quality data attribution
4Contributors
- amlai
1 station
Individual Contributor
- 3 Anonymous contributors
3 stations
3 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in St Louis?
AQI US, Metric