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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 SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Saint Louis today?
 | Index | N/A |
 | Tree pollen | N/A |
 | Grass pollen | N/A |
 | Weed pollen | N/A |
Weather
What is the current weather in Saint Louis?
| Weather | Clear sky |
| Temperature | 35.6°F |
| Humidity | 60% |
| Wind | 15 mp/h |
| Pressure | 30.3 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Conway, South Carolina | 67 |
| 2 | Pahrump, Nevada | 59 |
| 3 | Indio, California | 58 |
| 4 | Alpharetta, Georgia | 56 |
| 5 | Marietta, Georgia | 55 |
| 6 | Strawberry, California | 55 |
| 7 | St Louis, Missouri | 54 |
| 8 | Visalia, California | 54 |
| 9 | Westminster, Colorado | 54 |
| 10 | Auberry, California | 53 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
13*
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 13* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.1*µg/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 |
|---|---|---|---|---|
| Today | Good 13 AQI US |  | 51.8° 30.2° |  6.7 mp/h |
| Thursday, Apr 25 | Good 21 AQI US |  50% | 60.8° 32° | 15.7 mp/h |
| Friday, Apr 26 | Moderate 58 AQI US  | 100% | 69.8° 50° | 15.7 mp/h |
| Saturday, Apr 27 | Moderate 57 AQI US | 90% | 66.2° 62.6° | 13.4 mp/h |
| Sunday, Apr 28 | Moderate 74 AQI US | 100% | 68° 57.2° | 17.9 mp/h |
| Monday, Apr 29 | Good 29 AQI US | | 62.6° 48.2° | 13.4 mp/h |
| Tuesday, Apr 30 | Good 9 AQI US | 40% | 69.8° 50° | 13.4 mp/h |
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News
The latest air quality news and resources.
Where is the cleanest air quality in Saint Louis?
No locations are available.
AQI US, Metric