Allergies & Pollen Count for Heron Lake, Minnesota
Today's Condition
Discussion
Concentration of pollen grains in the air for Thursday will be falling but will remain in the very high range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to lack of strong winds.
Allergy Facts
Pigweed is a member of the Amaranth family, a large plant family that consists of 900 species. Pigweed and its relatives (tumbleweed, careless weed and water-hemp, to name just a few) are a frequent cause of allergies in many cities in the United States.