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Allergies & Pollen

Pollen Forecast for West Chester, Pennsylvania

10.1
High
Oak, Birch and Grass
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Today
The pollen levels for Sunday will be falling but will remain in the very high range. The cause for the falling pollen levels is rising relative humidity and relatively weaker winds.
Outlook
Concentration of pollen grains in the air for Monday will be falling but will remain in the high range. This relief in pollen levels is caused in part by falling temperatures, rising humidity, and expected precipitation in the evening which tends to wash pollen out of the air.