Pollen Forecast for San Marcos, California
High
Ash, Mulberry and Alder.
Today
Based on past pollen counts and expected weather conditions, pollen levels for Thursday will remain stable in the high range. Pollen producing plants are at a relatively steady level of pollination at this time.
Outlook
Based on past pollen counts and expected weather conditions, pollen levels for Thursday will remain stable in the high range. Pollen producing plants are at a relatively steady level of pollination at this time.