Pollen Forecast for Pasadena, California
Low-Medium
Alder and Ash
Today
The amount of pollen in the air for Wednesday will be falling in the low range. This relief in pollen levels is caused in part by falling temperatures, rising humidity, and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air. With this amount of reduction in pollen levels, tomorrow should be better for allergy sufferers.
Outlook
Concentration of pollen grains in the air for Thursday will be falling into the extremely low range. This change results in part from rising humidity and heavy rains in the morning, afternoon and evening which tend to wash pollen out of the air.