Pollen Forecast for Winthrop, Washington
Today
The quantity of pollen grains in the air for Friday will be falling in the moderate range. The cause for the falling pollen levels is falling temperatures, higher dew points and lack of strong winds.
Outlook
Concentration of pollen grains in the air for Saturday will be falling in the low range. This relief in pollen levels is caused in part by falling temperatures, rising relative humidity and weaker winds.