Weather Alerts For Fort Pierre, SD

Pollen Index: 9.3 Pollen Level: medium-high Predominant Pollen: Ragweed, Chenopods and Nettle. Based on past pollen counts and expected weather conditions, pollen levels for Thursday will be greater than today's levels and extend further into the very high range. Since the weather has a major influence on pollen dispersal, this increase is due in part to higher temperatures and the lower dewpoint. If you have these allergies, tomorrow will likely be more difficult outdoors.