The Infectious risk has shown an upward trend over the past 12 weeks, reaching a notably higher level in the most recent week compared to prior weeks..
Allergy risk activity has been trending downward over the past 12 weeks in Union, Oregon.
Pollution risk activity has been climbing over the past 12 weeks in Union, Oregon.
Weather risk activity has been climbing over the past 12 weeks in Union, Oregon.
Last updated: August 24, 2026
Data refreshed weekly