The Infectious risk has climbed over the last 12 weeks, ending the period at its highest level..
Allergy risk activity has been climbing 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 held steady over the past 12 weeks in Grayson, Virginia.
Last updated: August 24, 2026
Data refreshed weekly