Pollen Forecast for Ashburn, Virginia

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

Concentration of pollen grains in the air for Sunday will be unchanged in the extremely low range. Although pollen is almost non-existent at this time, the budding trees are not far off. By the time the tree buds are noticeable, the new pollen is already in the air.