Allergies & Pollen for Knoxville, Illinois
Discussion
The pollen levels for Friday will be falling in the moderate range. This change results in part from rising humidity and heavy rains in the evening which tend to wash pollen out of the air. This will improve your outlook if you have allergies and enjoy the out of doors.
Allergy Facts
Grasses are a large, diverse group of plants belonging to the family Poaceae, and includes some 8,000 species.