Low Covid-19 risk in DeKalb, Illinois.
Low Flu risk in DeKalb, Illinois.
Low Rsv risk in DeKalb, Illinois.
Low Infectious risk in DeKalb, Illinois.
Very high Allergy risk in DeKalb, Illinois.
Low Pollution risk in DeKalb, Illinois.
Low Weather risk in DeKalb, Illinois.
Last updated: April 20, 2026
Data refreshed weekly