Pollen Alerts For Port Byron, IL

Pollen Index: 10.1 Pollen Level: high Predominant Pollen: Maple, Birch and Oak. Based on past pollen counts and expected weather conditions, pollen levels for Saturday will be falling but will remain in the high range. This relief in pollen levels is caused in part by rising humidity, weak winds and expected precipitation in the morning and evening which tends to wash pollen out of the air.