Pollen Forecast for Hillsboro, Illinois

Pollen concentrations for Thursday will be falling and will remain in the extremely low range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to falling temperatures, rising humidity, and expected precipitation in the evening which tends to wash pollen out of the air.

Concentration of pollen grains in the air for Friday will be unchanged in the extremely low range. Published Multidata research shows the possibility of trace or low levels of pollen being carried from distant regions even during this period of a lack of local pollen production.