Infectious risk activity has been decreasing over the past 12 weeks in Walla Walla, Washington.
Allergens risk has generally increased over the last 12 weeks, with current levels remaining elevated compared to recent weeks, indicating a rising trend in allergy-related health risks..
Pollution risk has remained consistently low and stable over the past 12 weeks with no significant changes observed..
Severe Weather risk has shown variability over the last 12 weeks with some spikes, and the current week reflects a slight increase relative to recent weeks..
Last updated: May 25, 2026
Data refreshed weekly