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Air quality in Saint Charles
Air quality index (AQI) and PM2.5 air pollution in Saint Charles
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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 | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Charles?
| Weather | Clear sky |
| Temperature | 50°F |
| Humidity | 73% |
| Wind | 5.1 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Allentown, Pennsylvania | 89 |
| 2 | Bethlehem, Pennsylvania | 87 |
| 3 | Coopersburg, Pennsylvania | 73 |
| 4 | North Hollywood, California | 71 |
| 5 | Quakertown, Pennsylvania | 70 |
| 6 | Philadelphia, Pennsylvania | 68 |
| 7 | Trenton, New Jersey | 67 |
| 8 | Lewisville, Texas | 66 |
| 9 | Camden, New Jersey | 63 |
| 10 | Princeton, New Jersey | 63 |
(local time)
SEE WORLD AQI RANKING
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US AQI
15*
live AQI index
Good
Overview
What is the current air quality in Saint Charles?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 15* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.5*µg/m³ | |
✓
PM2.5 concentration in Saint Charles air currently meets 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 |
|---|---|---|---|---|
| Today | Good 15 AQI US |  100% | 68° 39.2° |  20.1 mp/h |
| Wednesday, May 1 | Good 12 AQI US |  | 60.8° 44.6° | 20.1 mp/h |
| Thursday, May 2 | Good 34 AQI US | 100% | 51.8° 48.2° | 17.9 mp/h |
| Friday, May 3 | Good 20 AQI US | 30% | 62.6° 41° | 15.7 mp/h |
| Saturday, May 4 | Good 7 AQI US | 100% | 51.8° 42.8° | 6.7 mp/h |
| Sunday, May 5 | Good 9 AQI US | | 66.2° 41° | 6.7 mp/h |
| Monday, May 6 | Good 5 AQI US | | 66.2° 48.2° | 15.7 mp/h |
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News
The latest air quality news and resources.
Where is the cleanest air quality in Saint Charles?
No locations are available.
AQI US, Metric