Infectious risk activity has been decreasing over the past 12 weeks in Yankton, South Dakota.
Allergy risk activity has been increasing over the past 12 weeks in Yankton, South Dakota.
No Pollution activity has been reported over the past 12 weeks in Yankton, South Dakota.
Weather risk activity has been increasing over the past 12 weeks in Yankton, South Dakota.
Last updated: May 25, 2026
Data refreshed weekly