AddAir quality in St. Louis
Air quality index (AQI⁺) and PM2.5 air pollution in St. Louis • 28 Followers • 14:00, Sep 24 Local time
21*
US AQI⁺Good
Main pollutant:
PM2.5
3.8 µg/m³
21°
18 km/h
51 %
Hourly forecast
St. Louis air quality index (AQI⁺) forecast
Daily forecast
St. Louis air quality index (AQI⁺) forecast
| Today | 20 |  | 21° 9° |  20 km/h | 71% |
| Fri | 19 | | 19° 8° | 14 km/h | 74% |
| Sat | 19 | | 19° 4° | 12 km/h | 80% |
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
Air Purifiers
Face Masks
Air Quality Monitors
Pollen
What is the pollen count in St. Louis today?
Index
Low
 Tree None | 0% |
 Grass None | 0% |
 Weed Low | 25% |
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 None | 0% |
Grass None | 0% |
Weed Low | 25% |
Source:
wetter.comProtect yourself from air pollution in St. Louis
Air Purifiers
Face Masks
Air Quality Monitors
Most polluted locations near St. Louis
Worldwide AQI⁺ ranking
City ranking
Real-time USA AQI⁺ city ranking
Historic air quality near St. Louis
History
Historic air quality graph for St. Louis
Historic air quality near St. Louis
History
Historic air quality graph for St. Louis
Most polluted locations near St. Louis
Worldwide AQI⁺ rankingCity ranking
