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Allergies & Pollen

Pollen Forecast for San Francisco, California

4.3
Low-Medium
Grass, Oak and Mulberry
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Today
Concentration of pollen grains in the air for Monday will be falling in the moderate range. The cause for the falling pollen levels is rising humidity, weakening winds and expected precipitation in the morning and afternoon which tends to wash pollen out of the air. That's good news for allergy sufferers.
Outlook
The quantity of pollen grains in the air for Tuesday will be on the increase in the moderate range. This higher level is caused in part by rising temperatures, strong winds and lower relative humidity. The increase of this magnitude could make it more difficult for those with allergies.