Infectious risk activity has been stable over the past 12 weeks in Cass, Iowa.
Allergy risk activity has been increasing over the past 12 weeks in Cass, Iowa.
No Pollution activity has been reported over the past 12 weeks in Cass, Iowa.
Weather risk activity has been increasing over the past 12 weeks in Cass, Iowa.
Last updated: May 25, 2026
Data refreshed weekly