Allergies & Pollen Count for Castleton, Illinois
Today's Condition
Discussion
The pollen levels for Tuesday will be falling in the moderate range. This relief in pollen levels is caused in part by rising humidity, weak winds and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air. This will improve your outlook if you have allergies and enjoy the out of doors.
Allergy Facts
Giant ragweed plants are able to dominate other plants by blocking light from reaching them. One study found that ragweed's canopy is able to reduce light reaching plants beneath it by 95%.