Allergies & Pollen Count for Winthrop Harbor, Illinois
Today's Condition
Discussion
Concentration of pollen grains in the air for Tuesday will be falling but will remain in the high range. This decrease is due to rising relative humidity and relatively weaker winds.
Allergy Facts
Ragweed generally grows in disturbed soil (e.g., tilled agricultural fields, construction sites). Ecologists consider ragweed a pioneer plant for its ability to invade vacant soils or soils that cannot support other vegetation.