Pollen Forecast for Sierra Madre, California
Medium-High
Ash, Alder and Cedar/Juniper
Today
Concentration of pollen grains in the air for Wednesday will be falling but will remain in the high range. This lower level is caused by falling temperatures, rising relative humidity and weaker winds.
Outlook
Concentration of pollen grains in the air for Thursday will be increasing in the high range. This rise is a result of higher temperatures and the lower dewpoint.