Allergies & Pollen
Pollen Forecast for Hillsborough, California
0.4
Low
Elm
Today
The amount of pollen in the air for Saturday will not change appreciably and will remain in the extremely low range. Although pollen is almost non-existent at this time, the budding trees are not far off. By the time the tree buds are noticeable, the new pollen is already in the air.
Outlook