Infectious risk activity has been decreasing over the past 12 weeks in Arapahoe, Colorado.
Allergy risk activity has been increasing over the past 12 weeks in Arapahoe, Colorado.
Pollution risk activity has been decreasing over the past 12 weeks in Arapahoe, Colorado.
Weather risk activity has been increasing over the past 12 weeks in Arapahoe, Colorado.
Last updated: May 25, 2026
Data refreshed weekly