Pollen Forecast for Pasadena, California
Low-Medium
Alder
Today
The pollen levels for Sunday will be falling in the low range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to falling temperatures, rising humidity, and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air. This will improve your outlook if you have allergies and enjoy the out of doors.
Outlook
The quantity of pollen grains in the air for Monday will be rising in the moderate range. This increase is due to drier air. This heavy increase in pollen concentration could very well cause problems for those who are allergic to airborne pollens.