Il tempo in tutte le località dell'Illinois
C
- St. Louis Downtown Airport Cahokia
- Cairo
- Caledonia
- Cambria
- Campton Hills
- Canal Trustees
- Capitol Oaks
- Capron
- Carbondale
- Southern Illinois Airport Carbondale
- Carman
- Carol Stream
- Carville
- Cary
- Casey
- Champaign
- University Of Illinois-Willard Airport Champaign
- Chestnut Mountain Resort
- Chicago
- Chicago Heights
- Chicago Nexrad
- Chicago Rockford International Airport
- Aeropuerto Internacional O'Hare Chicago
- Aeropuerto Midway Chicago
- Aeropuerto Regional Waukegan Chicago
- Dupage County Airport Chicago
- Estación de Guardacostas de Calumet Chicago
- Meigs Chicago
- Aeropuerto Pal-Waukee Wheeling Chicago
- Chippewa
- Chittenden
- Cityfront Center
- Cityfront Place
- Coal Valley
- Colmar
- Colonial Village
- Como
- Countryside
- Crystal Lake
- Cuba
- Cuba