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