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Air quality in Saint Louis
Air quality index (AQI) and PM2.5 air pollution in Saint Louis
14.5K people follow this city
Saint Louis Air Quality Map
Real-time Saint Louis air pollution map
AIR QUALITY DATA CONTRIBUTORS
4 Contributors
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Pollen
What is the pollen count in Saint Louis today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Louis?
| Weather | Broken clouds |
| Temperature | 69.8°F |
| Humidity | 88% |
| Wind | 2 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Corpus Christi, Texas | 103 |
| 2 | Coachella, California | 95 |
| 3 | Mecca, California | 93 |
| 4 | Glendora, California | 89 |
| 5 | San Bernardino, California | 86 |
| 6 | North Hollywood, California | 83 |
| 7 | Pahrump, Nevada | 82 |
| 8 | Palm Desert, California | 82 |
| 9 | Redlands, California | 80 |
| 10 | Yucaipa, California | 78 |
(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 | Branch Street | 49 |
| 2 | BLAIR STREET | 36 |
| 3 | BROADWAY (South) | 28 |
| 4 | Forest Park | 24 |
| 5 | Windswept Drive | 24 |
| 6 | Ladue | 16 |
| 7 | Muirfield Lane | 3 |
| 8 | Buchanan Street | 1 |
(local time)
SEE WORLD AQI RANKING
US AQI
26
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 26 US AQI | O3 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.3µg/m³ | |
| PM10 | 12.5µg/m³ | |
| O3 | 64µg/m³ | |
| NO2 | 10.1µg/m³ | |
| SO2 | 1.3µg/m³ | |
| CO | 286.3µg/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, May 29 | Good 27 AQI US |  | 77° 55.4° |  8.9 mp/h |
| Thursday, May 30 | Good 44 AQI US |  | 77° 60.8° | 13.4 mp/h |
| Friday, May 31 | Good 28 AQI US | | 73.4° 62.6° | 11.2 mp/h |
| Today | Good 26 AQI US | 100% | 73.4° 62.6° | 11.2 mp/h |
| Sunday, Jun 2 | Moderate 61 AQI US  | | 78.8° 60.8° | 6.7 mp/h |
| Monday, Jun 3 | Moderate 62 AQI US | 100% | 86° 64.4° | 11.2 mp/h |
| Tuesday, Jun 4 | Moderate 55 AQI US | 100% | 82.4° 66.2° | 8.9 mp/h |
| Wednesday, Jun 5 | Moderate 51 AQI US | 100% | 78.8° 66.2° | 11.2 mp/h |
| Thursday, Jun 6 | Good 32 AQI US | | 77° 62.6° | 17.9 mp/h |
| Friday, Jun 7 | Good 14 AQI US | | 71.6° 57.2° | 17.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Saint Louis air quality data attribution
4Contributors
- Missouri Department of Natural Resources
5 stations
Government Contributor
- 3 Anonymous contributors
3 stations
3 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Saint Louis?
AQI US, Metric