Weather Alerts For Watertown, SD

Pollen Index: 10.1 Pollen Level: high Predominant Pollen: Elm, Alder and Cedar/Juniper. Based on past pollen counts and expected weather conditions, pollen levels for Wednesday will be falling but will remain in the high range. This lower level is caused by falling temperatures, rising relative humidity and weaker winds. This reduction in pollen levels should be a relief to allergy sufferers.