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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 | 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 | Thunderstorm |
| Temperature | 66.2°F |
| Humidity | 88% |
| Wind | 5.7 mp/h |
| Pressure | 29.6 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | The Woodlands, Texas | 141 |
| 2 | New Braunfels, Texas | 125 |
| 3 | Georgetown, Texas | 124 |
| 4 | Austin, Texas | 120 |
| 5 | Round Rock, Texas | 116 |
| 6 | San Antonio, Texas | 113 |
| 7 | Leander, Texas | 98 |
| 8 | Boerne, Texas | 96 |
| 9 | Shreveport, Louisiana | 92 |
| 10 | Corpus Christi, Texas | 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 | BROADWAY (South) | 49 |
| 2 | Ladue | 41 |
| 3 | Branch Street | 37 |
| 4 | Windswept Drive | 35 |
| 5 | BLAIR STREET | 27 |
| 6 | Forest Park | 23 |
| 7 | Buchanan Street | 22 |
| 8 | Muirfield Lane | 0 |
(local time)
SEE WORLD AQI RANKING
US AQI
29
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 29 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.2µg/m³ | |
| PM10 | 25µg/m³ | |
| O3 | 68µg/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 |
|---|---|---|---|---|
| Monday, May 6 | Good 28 AQI US |  | 82.4° 62.6° |  15.7 mp/h |
| Tuesday, May 7 | Good 35 AQI US | | 80.6° 59° | 13.4 mp/h |
| Today | Good 29 AQI US | |||
| Tuesday, May 7 | Good 38 AQI US | 100% | 80.6° 59° | 13.4 mp/h |
| Today | Good 29 AQI US |  | 71.6° 55.4° | 17.9 mp/h |
| Thursday, May 9 | Good 17 AQI US |  | 66.2° 50° | 13.4 mp/h |
| Friday, May 10 | Good 20 AQI US | | 73.4° 53.6° | 8.9 mp/h |
| Saturday, May 11 | Good 19 AQI US | | 78.8° 57.2° | 8.9 mp/h |
| Sunday, May 12 | Good 48 AQI US | 30% | 69.8° 59° | 11.2 mp/h |
| Monday, May 13 | Moderate 65 AQI US  | 100% | 60.8° 59° | 6.7 mp/h |
| Tuesday, May 14 | Moderate 67 AQI US | 80% | 78.8° 55.4° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Saint Louis air quality data attribution
4Contributors
- Missouri Department of Natural Resources
1 station
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