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Air quality in Saint Louis
Air quality index (AQI) and PM2.5 air pollution in Saint Louis
21 people follow this city
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 | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Louis?
| Weather | Mist |
| Temperature | 50°F |
| Humidity | 93% |
| Wind | 8.1 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Corpus Christi, Texas | 75 |
| 2 | Allentown, Pennsylvania | 74 |
| 3 | Braddock, Pennsylvania | 72 |
| 4 | Camden, New Jersey | 70 |
| 5 | New Braunfels, Texas | 70 |
| 6 | San Antonio, Texas | 70 |
| 7 | Coopersburg, Pennsylvania | 69 |
| 8 | Bethlehem, Pennsylvania | 68 |
| 9 | Elizabethtown, Pennsylvania | 67 |
| 10 | Philadelphia, Pennsylvania | 67 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
45*
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 45* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 10.9*µg/m³ | |
!
PM2.5
x2.2
PM2.5 concentration in Saint Louis is currently 2.2 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 |
|---|---|---|---|---|
| Today | Good 45 AQI US |  100% | 69.8° 48.2° |  15.7 mp/h |
| Tuesday, Apr 30 | Good 22 AQI US |  | 62.6° 48.2° | 13.4 mp/h |
| Wednesday, May 1 | Good 26 AQI US | | 71.6° 48.2° | 15.7 mp/h |
| Thursday, May 2 | Good 43 AQI US | 50% | 77° 53.6° | 13.4 mp/h |
| Friday, May 3 | Moderate 58 AQI US  | 100% | 64.4° 51.8° | 15.7 mp/h |
| Saturday, May 4 | Moderate 58 AQI US |  | 71.6° 46.4° | 6.7 mp/h |
| Sunday, May 5 | Good 17 AQI US |  | 64.4° 50° | 11.2 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