Pollen Forecast for Nicasio, California

Pollen concentrations for Sunday will be greater than today's levels but will stay in the very low range. Since the weather has a major influence on pollen dispersal, this increase is due in part to drier air.

Pollen concentrations for Monday will be falling and will remain in the extremely low range. This lower level is caused by falling temperatures, lack of strong winds and expected precipitation in the afternoon and evening which tends to wash pollen out of the air.