Pollen Alerts For Walker, MI

Pollen Index: 10.3 Pollen Level: high Predominant Pollen: Birch, Ash and Poplar/Aspen/Cottonwood. Pollen concentrations for Thursday will be falling but will remain in the very high range. This decrease is due to falling temperatures, rising humidity, and expected precipitation in the afternoon which tends to wash pollen out of the air.