The Infectious risk has trended downward over the last 12 weeks, bringing current levels down from earlier weeks..
Allergy risk activity has been increasing over the past 12 weeks in Brown, South Dakota.
No Pollution activity has been reported over the past 12 weeks in Brown, South Dakota.
Weather risk activity has stayed relatively flat over the past 12 weeks in Brown, South Dakota.
Last updated: July 6, 2026
Data refreshed weekly