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Air quality in St. Charles
Air quality index (AQI) and PM2.5 air pollution in St. Charles
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St. Charles Air Quality Map
Real-time St. Charles air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in St. Charles today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in St. Charles?
| Weather | Broken clouds |
| Temperature | 62.6°F |
| Humidity | 93% |
| Wind | 7.4 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Coachella, California | 97 |
| 2 | Tulsa, Oklahoma | 90 |
| 3 | Mecca, California | 88 |
| 4 | Indio, California | 85 |
| 5 | Fort Thompson, South Dakota | 83 |
| 6 | Blaine, Minnesota | 78 |
| 7 | Val Verde, California | 78 |
| 8 | Wichita, Kansas | 78 |
| 9 | Shreveport, Louisiana | 76 |
| 10 | Castaic, California | 74 |
(local time)
SEE WORLD AQI RANKING
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US AQI
26*
live AQI index
Good
Overview
What is the current air quality in St. Charles?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 26* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.7*µg/m³ | |
✓
PM2.5 concentration in St. Charles air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in St. Charles?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
St. Charles air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 26 AQI US |  90% | 62.6° 57.2° |  8.9 mp/h |
| Thursday, May 16 | Good 30 AQI US |  | 75.2° 53.6° | 11.2 mp/h |
| Friday, May 17 | Good 44 AQI US | | 73.4° 53.6° | 6.7 mp/h |
| Saturday, May 18 | Good 43 AQI US | 100% | 60.8° 53.6° | 8.9 mp/h |
| Sunday, May 19 | Good 47 AQI US | 100% | 57.2° 53.6° | 11.2 mp/h |
| Monday, May 20 | Good 36 AQI US | 100% | 53.6° 51.8° | 11.2 mp/h |
| Tuesday, May 21 | Moderate 56 AQI US  | | 71.6° 48.2° | 6.7 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in St. Charles?
No locations are available.
AQI US, Metric