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