Pollen Alerts For Tigard, OR

Pollen Index: 9.3 Pollen Level: medium-high Predominant Pollen: Ash, Alder and Birch. The amount of pollen in the air for Tuesday will not change appreciably and will remain in the high range. This is a result of stable temperatures. This lack of change in airborne pollen will continue to affect those who suffer from allergies and those who live with the allergy sufferers.