The Infectious risk has shown an upward trend over the past 12 weeks, with the most recent week notably higher than earlier in the window..
Allergy risk activity has been climbing over the past 12 weeks in Sherman, Nebraska.
No Pollution activity has been reported over the past 12 weeks in Sherman, Nebraska.
Weather risk activity has been easing over the past 12 weeks in Sherman, Nebraska.
Last updated: August 24, 2026
Data refreshed weekly