Low Covid-19 risk in Yankton, South Dakota.
Low Flu risk in Yankton, South Dakota.
Low Rsv risk in Yankton, South Dakota.
Low Infectious risk in Yankton, South Dakota.
Low Allergy risk in Yankton, South Dakota.
Low Pollution risk in Yankton, South Dakota.
Moderate Weather activity in Yankton, South Dakota.
Last updated: April 20, 2026
Data refreshed weekly