Pollen Forecast for Penn Valley, California

Based on past pollen counts and expected weather conditions, pollen levels for Monday will be increasing over today's levels in the moderate range. This is likely to be caused in part by drier air. These overall conditions could make it a bit more difficult for those who are allergic to airborne pollens.

Pollen concentrations for Tuesday will be falling into the extremely low range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to heavy rains in the morning, afternoon and evening which tend to wash pollen out of the air.