Pollen Forecast for Grandview, Washington
Today
Based on past pollen counts and expected weather conditions, pollen levels for Wednesday will be falling in the low range. This decrease is due to rising humidity, relatively calmer winds and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air.
Outlook
Based on past pollen counts and expected weather conditions, pollen levels for Thursday will be greater than today's levels but will still remain in the low range. The cause for the rising pollen levels is strong winds and decreasing humidity.