Pollen Forecast for Greenville, Illinois

The quantity of pollen grains in the air for Friday 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 which tends to wash pollen out of the air.

The pollen levels for Saturday will remain relatively stable in the high range. The pollen producing plants are delivering a fairly constant level of pollen into the air.