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Air quality in O'Fallon
Air quality index (AQI) and PM2.5 air pollution in O'Fallon
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O'Fallon Air Quality Map
Real-time O'Fallon air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in O'Fallon today?
 | Index | N/A |
 | Tree pollen | N/A |
 | Grass pollen | N/A |
 | Weed pollen | N/A |
Weather
What is the current weather in O'Fallon?
| Weather | Mist |
| Temperature | 50°F |
| Humidity | 96% |
| Wind | 0 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 70 |
| 2 | Indio, California | 66 |
| 3 | Rapid City, South Dakota | 65 |
| 4 | Libby, Montana | 59 |
| 5 | Nevada County, California | 54 |
| 6 | Placer, California | 54 |
| 7 | Yucaipa, California | 52 |
| 8 | Downieville, California | 50 |
| 9 | Duchesne, Utah | 49 |
| 10 | Hot Springs, South Dakota | 49 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
40*
live AQI index
Good
Overview
What is the current air quality in O'Fallon?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 40* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.8*µg/m³ | |
!
PM2.5
x2
PM2.5 concentration in O'Fallon is currently 2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in O'Fallon?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
O'Fallon air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 40 AQI US |  | 62.6° 42.8° |  8.9 mp/h |
| Wednesday, Apr 24 | Good 20 AQI US |  30% | 60.8° 41° | 11.2 mp/h |
| Thursday, Apr 25 | Moderate 52 AQI US  | 100% | 68° 50° | 17.9 mp/h |
| Friday, Apr 26 | Moderate 56 AQI US | 60% | 71.6° 62.6° | 20.1 mp/h |
| Saturday, Apr 27 | Moderate 73 AQI US | 100% | 69.8° 64.4° | 20.1 mp/h |
| Sunday, Apr 28 | Moderate 77 AQI US | 100% | 64.4° 53.6° | 13.4 mp/h |
| Monday, Apr 29 | Moderate 58 AQI US | 30% | 77° 50° | 8.9 mp/h |
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How to best protect from air pollution?
News
The latest air quality news and resources.
Where is the cleanest air quality in O'Fallon?
No locations are available.
AQI US, Metric