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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 | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Moderate | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in O'Fallon?
| Weather | Broken clouds |
| Temperature | 75.2°F |
| Humidity | 75% |
| Wind | 8.1 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  San Antonio, Texas | 94 |
| 2 | New Braunfels, Texas | 88 |
| 3 | Boerne, Texas | 87 |
| 4 | San Fernando, California | 78 |
| 5 | La Crescenta-Montrose, California | 75 |
| 6 | Austin, Texas | 73 |
| 7 | Pahrump, Nevada | 73 |
| 8 | Saint Petersburg, Florida | 72 |
| 9 | Glendora, California | 71 |
| 10 | Round Rock, Texas | 70 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
50*
live AQI index
Good
Overview
What is the current air quality in O'Fallon?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 50* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.1*µg/m³ | |
!
PM2.5
x1.8
PM2.5 concentration in O'Fallon is currently 1.8 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 50 AQI US |  100% | 75.2° 62.6° |  8.9 mp/h |
| Sunday, Jun 2 | Moderate 56 AQI US  | | 80.6° 60.8° | 6.7 mp/h |
| Monday, Jun 3 | Moderate 63 AQI US | 100% | 86° 64.4° | 17.9 mp/h |
| Tuesday, Jun 4 | Moderate 56 AQI US | 70% | 86° 64.4° | 11.2 mp/h |
| Wednesday, Jun 5 | Good 49 AQI US | 100% | 78.8° 66.2° | 20.1 mp/h |
| Thursday, Jun 6 | Good 35 AQI US | | 77° 60.8° | 11.2 mp/h |
| Friday, Jun 7 | Good 15 AQI US |  | 80.6° 57.2° | 6.7 mp/h |
| Saturday, Jun 8 | Good 25 AQI US | | 69.8° 60.8° | 13.4 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 O'Fallon?
No locations are available.
AQI US, Metric