The Infectious risk has steadily declined over the past 12 weeks, with the most recent week notably lower than earlier in the window..
Allergy risk activity has been climbing over the past 12 weeks in Polk, Nebraska.
No Pollution activity has been reported over the past 12 weeks in Polk, Nebraska.
Weather risk activity has been trending upward over the past 12 weeks in Polk, Nebraska.
Last updated: July 6, 2026
Data refreshed weekly