The Infectious risk has fallen noticeably over the past 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been increasing over the past 12 weeks in McPherson, South Dakota.
No Pollution activity has been reported over the past 12 weeks in McPherson, South Dakota.
Weather risk activity has been increasing over the past 12 weeks in McPherson, South Dakota.
Last updated: July 6, 2026
Data refreshed weekly