Pollen Forecast for Portland, Oregon
Medium
Cedar/Juniper
Today
The amount of pollen in the air for Friday will be greater than today's levels in the moderate range. This forecast of higher pollen concentration is based on strong winds and decreasing humidity.
Outlook
Pollen concentrations for Saturday will be falling in the moderate range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to falling temperatures.