The Infectious risk has risen noticeably over the past 12 weeks, ending the period at its highest level..
Allergy risk activity has been trending downward 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 been trending downward over the past 12 weeks in Brown, South Dakota.
Last updated: August 24, 2026
Data refreshed weekly