The Infectious risk has held relatively steady over the last 12 weeks, with moderate levels persisting through the latest week..
Allergy risk activity has been increasing over the past 12 weeks in Perkins, South Dakota.
Pollution risk activity has been increasing over the past 12 weeks in Perkins, South Dakota.
Weather risk activity has been trending downward over the past 12 weeks in Perkins, South Dakota.
Last updated: September 28, 2026
Data refreshed weekly