The Infectious risk has trended steadily upward over the last 12 weeks, reaching a notably higher level in the most recent week compared to prior weeks..
Allergy risk activity has been decreasing over the past 12 weeks in Pennington, South Dakota.
Pollution risk activity has been decreasing over the past 12 weeks in Pennington, South Dakota.
Weather risk activity has been trending downward over the past 12 weeks in Pennington, South Dakota.
Last updated: August 24, 2026
Data refreshed weekly