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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 | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint-Louis?
| Weather | Clear sky |
| Temperature | 53.6°F |
| Humidity | 81% |
| Wind | 3.4 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time France city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Amiens, Hauts-de-France | 75 |
| 2 | Chartres, Centre | 61 |
| 3 | Calais, Hauts-de-France | 56 |
| 4 | Lyon, Auvergne-Rhone-Alpes | 55 |
| 5 | Paris, Ile-de-France | 54 |
| 6 | Reims, Grand Est | 41 |
| 7 | Angers, Pays de la Loire | 40 |
| 8 | Saint-Nazaire, Pays de la Loire | 40 |
| 9 | Nantes, Pays de la Loire | 39 |
| 10 | Toulouse, Occitanie | 35 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
43*
live AQI index
Good
Overview
What is the current air quality in Saint-Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 43* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 7.8*µg/m³ | |
!
PM2.5
x1.6
PM2.5 concentration in Saint-Louis is currently 1.6 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 43 AQI US |  | 71.6° 50° |  4.5 mp/h |
| Sunday, May 12 | Good 48 AQI US |  100% | 75.2° 51.8° | 6.7 mp/h |
| Monday, May 13 | Good 46 AQI US | 100% | 69.8° 53.6° | 4.5 mp/h |
| Tuesday, May 14 | Moderate 54 AQI US  | 90% | 62.6° 53.6° | 8.9 mp/h |
| Wednesday, May 15 | Good 24 AQI US | 100% | 51.8° 48.2° | 4.5 mp/h |
| Thursday, May 16 | Good 35 AQI US | 100% | 59° 46.4° | 2.2 mp/h |
| Friday, May 17 | Moderate 53 AQI US | 100% | 59° 48.2° | 2.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Saint-Louis?
No locations are available.
AQI US, Metric