Pollen Alerts For Grants Pass, OR

Pollen Index: 9 Pollen Level: medium-high Predominant Pollen: Alder, Ash and Poplar/Aspen/Cottonwood. Pollen concentrations for Wednesday will be falling in the low range. This forecast of lower pollen concentration is based on rising humidity, strong winds and heavy rains in the afternoon and evening which tend to wash pollen out of the air. The lower pollen levels are significant and should help allergy sufferers to cope tomorrow.