Pollen Forecast for San Luis Obispo, California

Pollen concentrations for Thursday will be falling into the extremely low range. This change results in part from falling temperatures, rising humidity and heavy rains in the morning which tend to wash pollen out of the air.

Concentration of pollen grains in the air for Friday will be rising but will still remain in the low range. The cause for the rising pollen levels is seasonally normal weather conditions which are favorable for the production and dispersal of pollen. This heavy increase in pollen concentration could very well cause problems for those who are allergic to airborne pollens.