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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
4 Contributors
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Pollen
What is the pollen count in Saint Louis today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Louis?
| Weather | Clear sky |
| Temperature | 66.2°F |
| Humidity | 70% |
| Wind | 4.6 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Marina del Rey, California | 88 |
| 2 | Boerne, Texas | 83 |
| 3 | San Antonio, Texas | 81 |
| 4 | New Braunfels, Texas | 73 |
| 5 | Ukiah, California | 71 |
| 6 | Hollywood, California | 67 |
| 7 | Lakeport, California | 67 |
| 8 | Corpus Christi, Texas | 65 |
| 9 | Glendale, California | 64 |
| 10 | Mecca, California | 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 | Branch Street | 136 |
| 2 | BLAIR STREET | 42 |
| 3 | BROADWAY (South) | 25 |
| 4 | Windswept Drive | 25 |
| 5 | Buchanan Street | 22 |
| 6 | Forest Park | 14 |
| 7 | Muirfield Lane | 14 |
| 8 | Ladue | 12 |
(local time)
SEE WORLD AQI RANKING
US AQI
48
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 48 US AQI | PM10 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.3µg/m³ | |
| PM10 | 53µg/m³ | |
| O3 | 80µg/m³ | |
| NO2 | 27.4µg/m³ | |
| SO2 | 1.3µg/m³ | |
| CO | 343.5µg/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 |
|---|---|---|---|---|
| Tuesday, May 28 | Good 30 AQI US |  | 75.2° 57.2° |  6.7 mp/h |
| Wednesday, May 29 | Good 27 AQI US |  | 77° 55.4° | 8.9 mp/h |
| Today | Good 48 AQI US | |||
| Friday, May 31 | Moderate 53 AQI US  |  90% | 75.2° 57.2° | 13.4 mp/h |
| Saturday, Jun 1 | Moderate 61 AQI US | 100% | 68° 60.8° | 13.4 mp/h |
| Sunday, Jun 2 | Moderate 65 AQI US |  | 80.6° 57.2° | 6.7 mp/h |
| Monday, Jun 3 | Moderate 64 AQI US | 40% | 82.4° 64.4° | 13.4 mp/h |
| Tuesday, Jun 4 | Moderate 63 AQI US | 70% | 84.2° 66.2° | 11.2 mp/h |
| Wednesday, Jun 5 | Moderate 55 AQI US | 100% | 80.6° 68° | 11.2 mp/h |
| Thursday, Jun 6 | Good 14 AQI US | | 82.4° 64.4° | 11.2 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