The Infectious risk has trended steadily upward over the past 12 weeks, with the most recent week notably higher than earlier in the window..
Allergy risk activity has stayed relatively flat over the past 12 weeks in Brookings, South Dakota.
No Pollution activity has been reported over the past 12 weeks in Brookings, South Dakota.
Weather risk activity has been easing over the past 12 weeks in Brookings, South Dakota.
Last updated: August 24, 2026
Data refreshed weekly