The Infectious risk has shown an upward trend over the last 12 weeks, ending the period at its highest level..
No Allergy activity has been reported over the past 12 weeks in Nantucket, Massachusetts.
No Pollution activity has been reported over the past 12 weeks in Nantucket, Massachusetts.
No Weather activity has been reported over the past 12 weeks in Nantucket, Massachusetts.
Last updated: July 6, 2026
Data refreshed weekly