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