The Infectious risk has fallen noticeably over the past 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been easing over the past 12 weeks in Grayson, Texas.
Pollution risk activity has been climbing over the past 12 weeks in Grayson, Texas.
Weather risk activity has been decreasing over the past 12 weeks in Grayson, Texas.
Last updated: August 24, 2026
Data refreshed weekly