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Air quality in St Louis
Air quality index (AQI) and PM2.5 air pollution in St Louis
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St Louis Air Quality Map
Real-time St Louis air pollution map
AIR QUALITY DATA CONTRIBUTORS
3 Contributors
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Pollen
What is the pollen count in St Louis today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in St Louis?
| Weather | Clear sky |
| Temperature | 42.8°F |
| Humidity | 85% |
| Wind | 4.6 mp/h |
| Pressure | 30.3 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 157 |
| 2 | Pahrump, Nevada | 68 |
| 3 | Conway, South Carolina | 66 |
| 4 | Tallahassee, Florida | 66 |
| 5 | Gary, Indiana | 63 |
| 6 | Decatur, Georgia | 61 |
| 7 | Ocala, Florida | 61 |
| 8 | Atlanta, Georgia | 60 |
| 9 | Marietta, Georgia | 60 |
| 10 | Athens, Georgia | 59 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live St Louis aqi ranking
Real-time St Louis air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Hyde Park | 49 |
| 2 | Central West End | 37 |
| 3 | Shaw | 35 |
(local time)
SEE WORLD AQI RANKING
US AQI
37
live AQI index
Good
Overview
What is the current air quality in St Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 37 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.1µg/m³ | |
!
PM2.5
x1.8
PM2.5 concentration in St Louis is currently 1.8 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in St Louis?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
St Louis air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 22 | Good 24 AQI US |  | 69.8° 51.8° |  13.4 mp/h |
| Tuesday, Apr 23 | Good 29 AQI US |  | 66.2° 44.6° | 8.9 mp/h |
| Wednesday, Apr 24 | Good 44 AQI US |  | 62.6° 42.8° | 8.9 mp/h |
| Today | Good 37 AQI US | | 62.6° 42.8° | 8.9 mp/h |
| Friday, Apr 26 | Good 44 AQI US | 100% | 68° 50° | 17.9 mp/h |
| Saturday, Apr 27 | Moderate 54 AQI US  | 100% | 77° 62.6° | 17.9 mp/h |
| Sunday, Apr 28 | Moderate 57 AQI US | 100% | 77° 66.2° | 17.9 mp/h |
| Monday, Apr 29 | Moderate 67 AQI US | 100% | 69.8° 60.8° | 13.4 mp/h |
| Tuesday, Apr 30 | Good 11 AQI US | 60% | 80.6° 57.2° | 8.9 mp/h |
| Wednesday, May 1 | Good 36 AQI US | 100% | 77° 62.6° | 8.9 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
St Louis air quality data attribution
3Contributors
- amlai
1 station
Individual Contributor
- 2 Anonymous contributors
2 stations
2 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in St Louis?
AQI US, Metric