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 Saint Louis
Air quality index (AQI) and PM2.5 air pollution in Saint Louis
13.4K people follow this city
Saint Louis Air Quality Map
Real-time Saint Louis air pollution map
AIR QUALITY DATA CONTRIBUTORS
3 Contributors
See all
Pollen
What is the pollen count in Saint Louis today?
 | Index | High | |
 | Tree pollen | High | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Louis?
| Weather | Broken clouds |
| Temperature | 71.6°F |
| Humidity | 76% |
| Wind | 10.4 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Oklahoma City, Oklahoma | 83 |
| 2 | Edmond, Oklahoma | 80 |
| 3 | Tampa, Florida | 78 |
| 4 | Corpus Christi, Texas | 67 |
| 5 | Tulsa, Oklahoma | 67 |
| 6 | Wichita, Kansas | 67 |
| 7 | San Antonio, Texas | 66 |
| 8 | Boerne, Texas | 64 |
| 9 | Lawrence, Kansas | 64 |
| 10 | The Woodlands, Texas | 63 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Saint Louis aqi ranking
Real-time Saint Louis air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | BLAIR STREET | 34 |
| 2 | Forest Park | 32 |
| 3 | Branch Street | 18 |
| 4 | Windswept Drive | 16 |
| 5 | BROADWAY (South) | 7 |
| 6 | Ladue | 7 |
| 7 | Muirfield Lane | 5 |
(local time)
SEE WORLD AQI RANKING
US AQI
10
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 10 US AQI | PM10 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 2µg/m³ | |
| PM10 | 11.5µg/m³ | |
✓
PM2.5 concentration in Saint Louis air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Saint Louis?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Saint Louis air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, Apr 24 | Good 27 AQI US |  | 60.8° 39.2° |  8.9 mp/h |
| Thursday, Apr 25 | Good 26 AQI US | | 69.8° 50° | 22.4 mp/h |
| Friday, Apr 26 | Good 30 AQI US | | 73.4° 62.6° | 15.7 mp/h |
| Today | Good 10 AQI US | 100% | 73.4° 62.6° | 15.7 mp/h |
| Sunday, Apr 28 | Moderate 53 AQI US  | 100% | 75.2° 66.2° | 22.4 mp/h |
| Monday, Apr 29 | Good 42 AQI US | 100% | 77° 59° | 17.9 mp/h |
| Tuesday, Apr 30 | Good 38 AQI US | 80% | 77° 55.4° | 8.9 mp/h |
| Wednesday, May 1 | Good 44 AQI US | 100% | 86° 64.4° | 8.9 mp/h |
| Thursday, May 2 | Moderate 59 AQI US | 100% | 69.8° 64.4° | 15.7 mp/h |
| Friday, May 3 | Moderate 58 AQI US | 90% | 68° 53.6° | 15.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Saint Louis air quality data attribution
3Contributors
- Missouri Department of Natural Resources
1 station
Government Contributor
- 2 Anonymous contributors
2 stations
2 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Saint Louis?
AQI US, Metric