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