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Air quality in Saint Louis
Air quality index (AQI) and PM2.5 air pollution in Saint Louis
13.9K people follow this city
Saint Louis Air Quality Map
Real-time Saint Louis air pollution map
AIR QUALITY DATA CONTRIBUTORS
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Pollen
What is the pollen count in Saint Louis today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Louis?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 83% |
| Wind | 4.6 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Apple Valley, Minnesota | 191 |
| 2 | Blaine, Minnesota | 188 |
| 3 | Minneapolis, Minnesota | 180 |
| 4 | Detroit Lakes, Minnesota | 178 |
| 5 | Saint Paul, Minnesota | 176 |
| 6 | Edina, Minnesota | 175 |
| 7 | Savage, Minnesota | 175 |
| 8 | Rochester, Minnesota | 174 |
| 9 | Chippewa Falls, Wisconsin | 155 |
| 10 | Houghton, Michigan | 154 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Saint Louis aqi ranking
Real-time Saint Louis air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Branch Street | 62 |
| 2 | Forest Park | 44 |
| 3 | Ladue | 41 |
| 4 | Windswept Drive | 37 |
| 5 | BLAIR STREET | 35 |
| 6 | BROADWAY (South) | 25 |
| 7 | Buchanan Street | 16 |
| 8 | Muirfield Lane | 7 |
(local time)
SEE WORLD AQI RANKING
US AQI
36
live AQI index
Good
Overview
What is the current air quality in Saint Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 36 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6.5µg/m³ | |
| PM10 | 23µg/m³ | |
| O3 | 66µg/m³ | |
| NO2 | 18.2µg/m³ | |
| SO2 | 2.9µg/m³ | |
| CO | 286.3µg/m³ | |
!
PM2.5
x1.3
PM2.5 concentration in Saint Louis is currently 1.3 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 |
|---|---|---|---|---|
| Friday, May 10 | Good 33 AQI US |  | 75.2° 53.6° |  11.2 mp/h |
| Saturday, May 11 | Good 40 AQI US | | 80.6° 55.4° | 11.2 mp/h |
| Sunday, May 12 | Good 32 AQI US |  | 68° 60.8° | 11.2 mp/h |
| Today | Good 36 AQI US | 100% | 68° 60.8° | 11.2 mp/h |
| Tuesday, May 14 | Good 46 AQI US | 100% | 69.8° 59° | 11.2 mp/h |
| Wednesday, May 15 | Good 42 AQI US |  | 75.2° 57.2° | 8.9 mp/h |
| Thursday, May 16 | Moderate 51 AQI US  | 100% | 69.8° 59° | 6.7 mp/h |
| Friday, May 17 | Moderate 70 AQI US | 50% | 75.2° 60.8° | 4.5 mp/h |
| Saturday, May 18 | Moderate 63 AQI US | | 82.4° 59° | 4.5 mp/h |
| Sunday, May 19 | Moderate 76 AQI US | | 87.8° 64.4° | 8.9 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Saint Louis air quality data attribution
4Contributors
- Missouri Department of Natural Resources
1 station
Government Contributor
- 3 Anonymous contributors
3 stations
3 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Saint Louis?
AQI US, Metric