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Air quality in Saint Louis
Air quality index (AQI) and PM2.5 air pollution in Saint Louis
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Saint Louis Air Quality Map
Real-time Saint Louis air pollution map
AIR QUALITY DATA CONTRIBUTORS
3 Contributors
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Pollen
What is the pollen count in Saint Louis today?
 | Index | High | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | High |
Weather
What is the current weather in Saint Louis?
| Weather | Clear sky |
| Temperature | 77°F |
| Humidity | 54% |
| Wind | 6.9 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Baton Rouge, Louisiana | 153 |
| 2 | Birmingham, Alabama | 103 |
| 3 | Camden, New Jersey | 98 |
| 4 | St Louis, Missouri | 92 |
| 5 | Trussville, Alabama | 91 |
| 6 | Lancaster, Pennsylvania | 89 |
| 7 | New Orleans, Louisiana | 89 |
| 8 | New York City, New York | 89 |
| 9 | Pensacola, Florida | 89 |
| 10 | Signal Hill, California | 89 |
(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 | Buchanan Street | 86 |
| 2 | Branch Street | 80 |
| 3 | Forest Park | 71 |
| 4 | BLAIR STREET | 68 |
| 5 | BROADWAY (South) | 68 |
| 6 | Ladue | 67 |
(local time)
SEE WORLD AQI RANKING
US AQI
70
live AQI index
Moderate
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 70 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 21µg/m³ | |
| PM10 | 82.5µg/m³ | |
| O3 | 70µg/m³ | |
| SO2 | 2.1µg/m³ | |
!
PM2.5
x4.2
PM2.5 concentration in Saint Louis is currently 4.2 times the WHO annual air quality guideline value
Health Recommendations
How to protect from air pollution in Saint Louis?
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should reduce outdoor exercise |
News
The latest air quality news and resources.
Forecast
Saint Louis air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Sunday, Oct 1 | Good 42 AQI US  | | 84.2° 62.6° |  4.5 mp/h |
| Monday, Oct 2 | Good 45 AQI US | | 86° 64.4° | 11.2 mp/h |
| Tuesday, Oct 3 | Moderate 58 AQI US |  | 78.8° 64.4° | 13.4 mp/h |
| Today | Moderate 70 AQI US | 100% | 78.8° 64.4° | 13.4 mp/h |
| Thursday, Oct 5 | Good 36 AQI US | 100% | 69.8° 62.6° | 8.9 mp/h |
| Friday, Oct 6 | Good 31 AQI US | | 69.8° 50° | 17.9 mp/h |
| Saturday, Oct 7 | Good 9 AQI US | | 60.8° 44.6° | 13.4 mp/h |
| Sunday, Oct 8 | Good 8 AQI US | | 69.8° 44.6° | 4.5 mp/h |
| Monday, Oct 9 | Good 27 AQI US | | 77° 51.8° | 6.7 mp/h |
| Tuesday, Oct 10 | Good 42 AQI US |  | 73.4° 57.2° | 4.5 mp/h |
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Historical
Historic air quality graph for Saint Louis
How to best protect from air pollution?
Saint Louis air quality data attribution
3Contributors
- Missouri Department of Natural Resources
1 station
Unidentified Contributor
1 station
2 Governments
- 1 Anonymous contributor
1 station
Anonymous
Data validated and calibrated by IQAirWhere is the cleanest air quality in Saint Louis?
AQI US, Metric