Weather Alerts For Harrold, SD

Pollen Index: 10.9 Pollen Level: high Predominant Pollen: Ragweed, Chenopods and Nettle. The amount of pollen in the air for Friday will be falling but will remain in the high range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to falling temperatures, higher dew points and lack of strong winds. With this amount of reduction in pollen levels, tomorrow should be better for allergy sufferers.