The Infectious risk has fallen noticeably over the last 12 weeks, bringing current levels down from earlier weeks..
Allergy risk activity has been trending upward over the past 12 weeks in Sully, South Dakota.
No Pollution activity has been reported over the past 12 weeks in Sully, South Dakota.
Weather risk activity has been trending downward over the past 12 weeks in Sully, South Dakota.
Last updated: July 6, 2026
Data refreshed weekly