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Air quality in Saint Charles
Air quality index (AQI) and PM2.5 air pollution in Saint Charles
145 people follow this city
Saint Charles Air Quality Map
Real-time Saint Charles air pollution map
AIR QUALITY DATA CONTRIBUTORS
2 Contributors
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Pollen
What is the pollen count in Saint Charles 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 Charles?
| Weather | Broken clouds |
| Temperature | 64.4°F |
| Humidity | 90% |
| Wind | 9.2 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 88 |
| 2 | Claremont, California | 86 |
| 3 | Corpus Christi, Texas | 84 |
| 4 | Redlands, California | 83 |
| 5 | Pasadena, California | 81 |
| 6 | San Bernardino, California | 80 |
| 7 | San Fernando, California | 80 |
| 8 | Glendale, California | 78 |
| 9 | Glendora, California | 78 |
| 10 | Mount Lebanon, Pennsylvania | 78 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Saint Charles aqi ranking
Real-time Saint Charles air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Cottleville Weldon Spring | 34 |
| 2 | Orchard Farm | 28 |
(local time)
SEE WORLD AQI RANKING
US AQI
34
live AQI index
Good
Overview
What is the current air quality in Saint Charles?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 34 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6.3µg/m³ | |
| O3 | 70µg/m³ | |
!
PM2.5
x1.3
PM2.5 concentration in Saint Charles is currently 1.3 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Saint Charles?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Saint Charles air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, May 29 | Good 39 AQI US |  | 78.8° 55.4° |  8.9 mp/h |
| Thursday, May 30 | Good 35 AQI US |  | 77° 60.8° | 11.2 mp/h |
| Friday, May 31 | Good 33 AQI US | | 73.4° 62.6° | 8.9 mp/h |
| Today | Good 34 AQI US | 100% | 73.4° 62.6° | 8.9 mp/h |
| Sunday, Jun 2 | Moderate 60 AQI US  | | 80.6° 57.2° | 6.7 mp/h |
| Monday, Jun 3 | Moderate 63 AQI US | 100% | 87.8° 66.2° | 13.4 mp/h |
| Tuesday, Jun 4 | Moderate 55 AQI US | 100% | 86° 68° | 13.4 mp/h |
| Wednesday, Jun 5 | Good 50 AQI US | 100% | 77° 66.2° | 13.4 mp/h |
| Thursday, Jun 6 | Good 25 AQI US | | 73.4° 60.8° | 17.9 mp/h |
| Friday, Jun 7 | Good 13 AQI US |  | 69.8° 57.2° | 17.9 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Saint Charles air quality data attribution
2Contributors
- Missouri Department of Natural Resources
1 station
Government Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
Data validated and calibrated by IQAirWhere is the cleanest air quality in Saint Charles?
AQI US, Metric