Pollen Forecast for Allen, South Dakota

The quantity of pollen grains in the air for Thursday will be higher than they were today in the moderate range. This rise is a result of rising temperatures, strong winds and lower relative humidity.

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