Air quality in St. Louis
Air quality index (AQI⁺) and PM2.5 air pollution in St. Louis • 3.9K Followers • 12:00, May 10 Local time
24
US AQI⁺Good
Main pollutant:
PM2.5
4.5 µg/m³
21°
15 km/h
44 %
Hourly forecast
St. Louis air quality index (AQI⁺) forecast
Daily forecast
St. Louis air quality index (AQI⁺) forecast
| Today | 21 | 21° 14° | 17 km/h | 57% | |
| Mon | 20 | 24° 12° | 16 km/h | 51% | |
| Tue | 24 | 27° 13° | 23 km/h | 52% |
Air pollutants
What is the current air quality in St. Louis?
PM2.5 concentration currently meets the WHO annual PM2.5 guideline.
Health recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Protect yourself from air pollution in St. Louis
Pollen
What is the pollen count in St. Louis today?
Index
Low
Tree Low | 25% |
Grass None | 0% |
Weed None | 0% |
Source:
wetter.comHealth recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Pollen
What is the pollen count in St. Louis today?
Index
Low
Tree Low | 25% |
Grass None | 0% |
Weed None | 0% |
Source:
wetter.comProtect yourself from air pollution in St. Louis
Most polluted locations near St. Louis
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in St. Louis
City ranking
Real-time USA AQI⁺ city ranking
Historic air quality near St. Louis
History
Historic air quality graph for St. Louis




