Pollen Alerts For Carol Stream, IL

Pollen Index: 9.1 Pollen Level: medium-high Predominant Pollen: Elm, Cedar/Juniper and Poplar/Aspen/Cottonwood. Concentration of pollen grains in the air for Monday will be unchanged in the high range. Constant and seasonally normal weather conditions tend to stabilize pollen concentrations in the outdoor air.