Pollen Forecast for Philadelphia, Pennsylvania

Based on past pollen counts and expected weather conditions, pollen levels for Thursday will be falling into the extremely low range. The cause for the falling pollen levels is rising humidity, relatively calmer winds and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air.

Based on past pollen counts and expected weather conditions, pollen levels for Friday will remain stable in the extremely low range. This is a result of stable temperatures. Published Multidata research shows the possibility of trace or low levels of pollen being carried from distant regions even during this period of a lack of local pollen production.