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Air quality in Saint Louis
Air quality index (AQI) and PM2.5 air pollution in Saint Louis
13.3K 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 | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Louis?
| Weather | Clear sky |
| Temperature | 53.6°F |
| Humidity | 62% |
| Wind | 9.2 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 162 |
| 2 | Thermal, California | 76 |
| 3 | Charleston, South Carolina | 72 |
| 4 | Pahrump, Nevada | 72 |
| 5 | Stanley, Virginia | 71 |
| 6 | Boerne, Texas | 68 |
| 7 | Savannah, Georgia | 68 |
| 8 | North Charleston, South Carolina | 67 |
| 9 | Fort Worth, Texas | 66 |
| 10 | Lewisville, Texas | 66 |
(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 | 73 |
| 2 | BLAIR STREET | 29 |
| 3 | Ladue | 26 |
| 4 | Windswept Drive | 26 |
| 5 | BROADWAY (South) | 17 |
| 6 | Buchanan Street | 17 |
| 7 | Forest Park | 17 |
| 8 | Muirfield Lane | 13 |
(local time)
SEE WORLD AQI RANKING
US AQI
40
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 40 US AQI | PM10 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.4µg/m³ | |
| PM10 | 44.5µg/m³ | |
| O3 | 70µg/m³ | |
| NO2 | 15.3µg/m³ | |
| SO2 | 1.6µg/m³ | |
| CO | 286.3µg/m³ | |
!
PM2.5
x1.1
PM2.5 concentration in Saint Louis is currently 1.1 times 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, Apr 23 | Good 26 AQI US |  | 66.2° 46.4° |  6.7 mp/h |
| Wednesday, Apr 24 | Good 27 AQI US |  | 60.8° 39.2° | 8.9 mp/h |
| Thursday, Apr 25 | Good 38 AQI US | | 73.4° 50° | 22.4 mp/h |
| Today | Good 40 AQI US | 100% | 73.4° 50° | 22.4 mp/h |
| Saturday, Apr 27 | Good 48 AQI US | 80% | 77° 64.4° | 17.9 mp/h |
| Sunday, Apr 28 | Moderate 53 AQI US  | 100% | 78.8° 66.2° | 20.1 mp/h |
| Monday, Apr 29 | Moderate 55 AQI US | 100% | 75.2° 62.6° | 15.7 mp/h |
| Tuesday, Apr 30 | Moderate 74 AQI US | 80% | 82.4° 62.6° | 15.7 mp/h |
| Wednesday, May 1 | Good 50 AQI US | 50% | 78.8° 64.4° | 8.9 mp/h |
| Thursday, May 2 | Good 43 AQI US | 100% | 75.2° 64.4° | 15.7 mp/h |
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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