The Infectious risk has stayed within a narrow range over the past 12 weeks, with the most recent week close to the 12-week average..
Allergy risk activity has been decreasing over the past 12 weeks in Grayson, Virginia.
No Pollution activity has been reported over the past 12 weeks in Grayson, Virginia.
Weather risk activity has been trending upward over the past 12 weeks in Grayson, Virginia.
Last updated: July 6, 2026
Data refreshed weekly