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Allergies & Pollen

Pollen Forecast for San Ysidro, California

5.4
Medium
Mulberry, Myrtle/Bayberry and Grass
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Today
Based on past pollen counts and expected weather conditions, pollen levels for Thursday will remain stable in the moderate range. This is a result of stable humidity. Pollen producing plants are at a relatively steady level of pollination at this time.
Outlook
Pollen concentrations for Friday will be rising in the moderate range. This is likely to be caused in part by higher temperatures and the lower dewpoint.