Pollen Alerts For Bellevue, WA

Pollen Index: 9.4 Pollen Level: medium-high Predominant Pollen: Mulberry, Sycamore and Ash. Pollen concentrations for Tuesday will be falling but will remain in the high range. This lowering of pollen concentrations is a result of falling temperatures, rising humidity, and expected precipitation in the afternoon and evening which tends to wash pollen out of the air.