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 Charles
Air quality index (AQI) and PM2.5 air pollution in Saint Charles
5 people follow this city
Saint Charles Air Quality Map
Real-time Saint Charles air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Saint Charles today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Weather
What is the current weather in Saint Charles?
| Weather | Broken clouds |
| Temperature | 55.4°F |
| Humidity | 97% |
| Wind | 5 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Visalia, California | 100 |
| 2 | Porterville, California | 93 |
| 3 | Three Rivers, California | 75 |
| 4 | Corpus Christi, Texas | 73 |
| 5 | Bakersfield, California | 72 |
| 6 | Palm Desert, California | 72 |
| 7 | Wichita, Kansas | 69 |
| 8 | Charlottesville, Virginia | 67 |
| 9 | The Woodlands, Texas | 65 |
| 10 | Mechanicsville, Maryland | 64 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Spotlight
There is a fire near Broaddus. Protect yourself from wildfire smoke and follow health recommendations. Click here.
US AQI
52*
live AQI index
Moderate
Overview
What is the current air quality in Saint Charles?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 52* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 12.6*µg/m³ | |
!
PM2.5
x2.5
PM2.5 concentration in Saint Charles is currently 2.5 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Saint Charles?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Saint Charles air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 52 AQI US |  | 73.4° 50° |  11.2 mp/h |
| Friday, Apr 19 | Good 40 AQI US  |  60% | 66.2° 44.6° | 6.7 mp/h |
| Saturday, Apr 20 | Good 43 AQI US | 60% | 66.2° 50° | 11.2 mp/h |
| Sunday, Apr 21 | Good 23 AQI US | | 60.8° 41° | 4.5 mp/h |
| Monday, Apr 22 | Good 15 AQI US | | 60.8° 46.4° | 4.5 mp/h |
| Tuesday, Apr 23 | Good 23 AQI US |  | 68° 44.6° | 8.9 mp/h |
| Wednesday, Apr 24 | Good 25 AQI US | 100% | 57.2° 48.2° | 8.9 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 Charles?
No locations are available.
AQI US, Metric