The Infectious risk has fallen noticeably over the last 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been trending downward over the past 12 weeks in Lewis, Washington.
Pollution risk activity has been increasing over the past 12 weeks in Lewis, Washington.
Weather risk activity has been increasing over the past 12 weeks in Lewis, Washington.
Last updated: August 24, 2026
Data refreshed weekly