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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 | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | High | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Charles?
| Weather | Clear sky |
| Temperature | 64.4°F |
| Humidity | 63% |
| Wind | 10.5 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Tulsa, Oklahoma | 111 |
| 2 | Oklahoma City, Oklahoma | 102 |
| 3 | Wichita, Kansas | 97 |
| 4 | Carter Lake, Iowa | 94 |
| 5 | Omaha, Nebraska | 94 |
| 6 | Val Verde, California | 91 |
| 7 | Fort Thompson, South Dakota | 89 |
| 8 | Castaic, California | 88 |
| 9 | Emmetsburg, Iowa | 86 |
| 10 | Fontana, California | 86 |
(local time)
SEE WORLD AQI RANKING
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US AQI
46*
live AQI index
Good
Overview
What is the current air quality in Saint Charles?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 46* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8.4*µg/m³ | |
!
PM2.5
x1.7
PM2.5 concentration in Saint Charles is currently 1.7 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 |
|---|---|---|---|---|
| Today | Good 46 AQI US | | 64.4° 44.6° |  11.2 mp/h |
| Wednesday, May 15 | Good 40 AQI US |  | 64.4° 41° | 11.2 mp/h |
| Thursday, May 16 | Moderate 51 AQI US  |  100% | 68° 51.8° | 13.4 mp/h |
| Friday, May 17 | Good 40 AQI US | | 69.8° 48.2° | 6.7 mp/h |
| Saturday, May 18 | Good 22 AQI US |  | 69.8° 53.6° | 8.9 mp/h |
| Sunday, May 19 | Good 21 AQI US | 100% | 66.2° 50° | 15.7 mp/h |
| Monday, May 20 | Good 16 AQI US | | 71.6° 50° | 4.5 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 Saint Charles?
No locations are available.
AQI US, Metric