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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 | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint-Louis?
| Weather | Broken clouds |
| Temperature | 68°F |
| Humidity | 67% |
| Wind | 12.7 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time France city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Bastia, Corsica | 57 |
| 2 | Calais, Hauts-de-France | 55 |
| 3 | Avignon, Provence-Alpes-Cote d'Azur | 42 |
| 4 | Nice, Provence-Alpes-Cote d'Azur | 41 |
| 5 | Marseille, Provence-Alpes-Cote d'Azur | 35 |
| 6 | Saint-Nazaire, Pays de la Loire | 33 |
| 7 | Paris, Ile-de-France | 31 |
| 8 | Chartres, Centre | 30 |
| 9 | Toulouse, Occitanie | 30 |
| 10 | Niort, Nouvelle-Aquitaine | 28 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
47*
live AQI index
Good
Overview
What is the current air quality in Saint-Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 47* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8.5*µg/m³ | |
!
PM2.5
x1.7
PM2.5 concentration in Saint-Louis is currently 1.7 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 47 AQI US |  100% | 68° 59° |  13.4 mp/h |
| Thursday, May 16 | Good 20 AQI US | 90% | 64.4° 59° | 8.9 mp/h |
| Friday, May 17 | Good 22 AQI US |  | 66.2° 57.2° | 8.9 mp/h |
| Saturday, May 18 | Good 25 AQI US | | 68° 59° | 13.4 mp/h |
| Sunday, May 19 | Good 38 AQI US | | 71.6° 60.8° | 6.7 mp/h |
| Monday, May 20 | Moderate 63 AQI US  | 100% | 69.8° 62.6° | 6.7 mp/h |
| Tuesday, May 21 | Good 24 AQI US | 100% | 60.8° 57.2° | 20.1 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