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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 CONTRIBUTORS
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Pollen
What is the pollen count in Saint Charles today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Saint Charles?
| Weather | Broken clouds |
| Temperature | 71.6°F |
| Humidity | 80% |
| Wind | 10.4 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Arroyo Grande, California | 137 |
| 2 | Nipomo, California | 99 |
| 3 | San Antonio, Texas | 78 |
| 4 | Boerne, Texas | 74 |
| 5 | Georgetown, Texas | 72 |
| 6 | Oklahoma City, Oklahoma | 72 |
| 7 | Leander, Texas | 70 |
| 8 | Round Rock, Texas | 70 |
| 9 | Austin, Texas | 69 |
| 10 | New Braunfels, Texas | 64 |
(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 | 29 |
| 2 | Orchard Farm | 29 |
(local time)
SEE WORLD AQI RANKING
US AQI
27
live AQI index
Good
Overview
What is the current air quality in Saint Charles?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 27 US AQI | O3 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.7µg/m³ | |
| O3 | 66µg/m³ | |
!
PM2.5
x1.1
PM2.5 concentration in Saint Charles is currently 1.1 times the WHO annual air quality guideline value
Forecast
Saint Charles air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, Apr 25 | Good 30 AQI US |  | 66.2° 51.8° |  20.1 mp/h |
| Friday, Apr 26 | Good 34 AQI US | | 77° 62.6° | 17.9 mp/h |
| Today | Good 27 AQI US | |||
| Friday, Apr 26 | Good 40 AQI US | 100% | 77° 62.6° | 17.9 mp/h |
| Today | Good 27 AQI US | 100% | 75.2° 62.6° | 17.9 mp/h |
| Sunday, Apr 28 | Good 41 AQI US | 100% | 73.4° 59° | 13.4 mp/h |
| Monday, Apr 29 | Good 24 AQI US | 90% | 82.4° 55.4° | 8.9 mp/h |
| Tuesday, Apr 30 | Good 41 AQI US | 100% | 86° 64.4° | 11.2 mp/h |
| Wednesday, May 1 | Moderate 56 AQI US  | 100% | 71.6° 66.2° | 13.4 mp/h |
| Thursday, May 2 | Moderate 56 AQI US | 100% | 66.2° 50° | 17.9 mp/h |
| Friday, May 3 | Good 11 AQI US |  | 68° 46.4° | 4.5 mp/h |
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Saint Charles air quality data attribution
1Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
Data validated and calibrated by IQAirWhere is the cleanest air quality in Saint Charles?
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AQI US, Metric