The Infectious risk has eased over the past 12 weeks, ending the period well below its earlier peak..
Allergy risk activity has been easing over the past 12 weeks in San Bernardino, California.
Pollution risk activity has been easing over the past 12 weeks in San Bernardino, California.
Weather risk activity has been trending upward over the past 12 weeks in San Bernardino, California.
Last updated: August 31, 2026
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