Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Saint-Louis
Air quality index (AQI) and PM2.5 air pollution in Saint-Louis
13 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 | None | |
 | Grass pollen | None | |
 | Weed pollen | Low |
Source: tomorrow.io
Weather
What is the current weather in Saint-Louis?
| Weather | Clear sky |
| Temperature | 78.8°F |
| Humidity | 65% |
| Wind | 3.4 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time France city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Fort-de-France, Martinique | 89 |
| 2 | Bastia, Corsica | 65 |
| 3 | Le Havre, Normandy | 57 |
| 4 | Calvados, Normandy | 54 |
| 5 | Angers, Pays de la Loire | 53 |
| 6 | Paris, Ile-de-France | 52 |
| 7 | Rouen, Normandy | 48 |
| 8 | Nantes, Pays de la Loire | 37 |
| 9 | Saint-Nazaire, Pays de la Loire | 37 |
| 10 | Mulhouse, Grand Est | 33 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
4*
live AQI index
Good
Overview
What is the current air quality in Saint-Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 4* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 1*µg/m³ | |
| NO2 | 8.4*µg/m³ | |
| SO2 | 0.1*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 4 AQI US |  60% | 80.6° 77° |  2.2 mp/h |
| Friday, Apr 26 | Good 6 AQI US | 30% | 80.6° 77° | 4.5 mp/h |
| Saturday, Apr 27 | Good 6 AQI US | 40% | 80.6° 77° | 2.2 mp/h |
| Sunday, Apr 28 | Good 6 AQI US | 40% | 78.8° 75.2° | 11.2 mp/h |
| Monday, Apr 29 | Good 6 AQI US | 40% | 80.6° 75.2° | 13.4 mp/h |
| Tuesday, Apr 30 | Good 5 AQI US | 40% | 78.8° 77° | 8.9 mp/h |
| Wednesday, May 1 | Good 5 AQI US | 50% | 78.8° 77° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Saint-Louis?
No locations are available.
AQI US, Metric