Pollen Forecast for North Cascades Natl Park, Washington

Concentration of pollen grains in the air for Friday will be rising in the moderate range. This is likely to be caused in part by drier air. This heavy increase in pollen concentration could very well cause problems for those who are allergic to airborne pollens.

The amount of pollen in the air 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 rising humidity and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air.