The Infectious risk has trended downward over the last 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been trending upward over the past 12 weeks in Clay, South Dakota.
No Pollution activity has been reported over the past 12 weeks in Clay, South Dakota.
Weather risk activity has remained stable over the past 12 weeks in Clay, South Dakota.
Last updated: July 6, 2026
Data refreshed weekly