The Infectious risk has stayed within a narrow range over the past 12 weeks, showing no notable shift in recent weeks..
Allergy risk activity has stayed relatively flat over the past 12 weeks in Lewis and Clark, Montana.
No Pollution activity has been reported over the past 12 weeks in Lewis and Clark, Montana.
Weather risk activity has been climbing over the past 12 weeks in Lewis and Clark, Montana.
Last updated: July 13, 2026
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