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Today's Pollen Count in O'Fallon
Very high
Air quality
Air quality of O'Fallon today
| AQI US AQI | Moderate | |
| PM2.5 µg/m³ | Moderate |
3D animated air pollution map
Allergy forecast
O'Fallon pollen count forecast
| Day | Index | Tree | Grass | Weed | Wind | Weather | Temperature |
|---|---|---|---|---|---|---|---|
| Today | Low | Low | Low | None |  6.7 mp/h |  | 82.4° 59° |
| Monday, Jun 3 | Very high | Very high | Moderate | None | 11.2 mp/h |  100% | 86° 62.6° |
| Tuesday, Jun 4 | Very high | Very high | Low | None | 11.2 mp/h | 100% | 75.2° 64.4° |
AQI US, Metric