Allergies & Pollen

Pollen Forecast for Harrisburg, Oregon

8
Medium-High
Grass, Walnut and Oak
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Today
Pollen concentrations for Wednesday will be on the increase in the high range. This rise is a result of seasonally normal weather conditions which are favorable for the production and dispersal of pollen. The increase of this magnitude could make it more difficult for those with allergies.
Outlook
The amount of pollen in the air for Thursday will be falling in the moderate range. The cause for the falling pollen levels is 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.