Dense Fog Advisory
until FRI 11:00 AM CST, Northern Cook County, Kankakee County, DeKalb County, DuPage County, Southern Will County, Kane County, Grundy County, Kendall County, Eastern Will County, Northern Will County, La Salle County, Lake County, Southern Cook County, Central Cook County, McHenry County, Newton County, Jasper County, Porter County, Lake County
