The Infectious risk has fallen noticeably over the past 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has stayed relatively flat over the past 12 weeks in Washington, Minnesota.
Pollution risk activity has been trending upward over the past 12 weeks in Washington, Minnesota.
Weather risk activity has been decreasing over the past 12 weeks in Washington, Minnesota.
Last updated: August 31, 2026
Data refreshed weekly