Clima en todas las ciudades de Illinois
C
- Cabery
- Cabrini Addition
- Cadiz
- Cadwell
- Cahokia
- St. Louis Downtown Airport Cahokia
- Cairo
- Caledonia
- California Park
- Calumet City
- Calumet Heights
- Calumet Park
- Camargo
- Cambridge Place
- Camp Algonquin
- Canal Trustees
- Canalport
- Canaryville
- Canton
- Canton Crossing
- Capri Village
- Carbon Cliff
- Carbondale
- Southern Illinois Airport Carbondale
- Cardinal Court
- Carillon
- Carl Sandburg Village
- Carlinville
- Carlyle
- Carol Stream
- Carpenter
- Carpenters Addition
- Carpentersville
- Carrier Mills
- Carrollton
- Carthage
- Carthage
- Carthage Lake
- Cartter
- Carville
- Cary
- Casey
- Caseyville
- Casner
- Castle Junction
- Cayuga
- Cedar Creek
- Cedar Lawn
- Cedar Park
- Central
- Central Station
- Centralia
- Centreville
- Champaign
- University Of Illinois-Willard Airport Champaign
- Channahon
- Channel Lake
- Chapin
- Charleston
- Charlotte
- Chatham
- Chatham
- Chebanse
- Cheltenham
- Chemung
- Chenoa
- Cherry Valley
- Chesnut Pointe
- Chesterfield
- Cheyenne Heights
- Chicago
- Chicago Heights
- Chicago Lawn
- Chicago Nexrad
- Chicago Ridge
- Chicago Rockford International Airport
- Dupage County Airport Chicago
- Estación de Guardacostas de Calumet Chicago
- Executive Airport Pal-Waukee Chicago
- Meigs Chicago
- Midway International Airport Chicago
- O'Hare International Airport Chicago
- Waukegan Regional Airport Chicago
- Chickasaw
- Childers Acres
- Chillicothe
- Chinatown
- Chittenden
- Churchville
- Cicero
- Cider Creek
- Cimic
- Cincinnati
- Cinnamon Creek
- Cityfront Center
- Cityfront Place
- Claremont Cottages
- Clarendon Hills
- Clark Center
- Clarkdale
- Clarksville
- Clearing
- Cleveland
- Cleveland Subdivision
- Clifton
- Clinton
- Clintonville
- Cloverdale
- Clyde
- Coal City
- Cobden
- Cody
- Colchester
- Coleman
- Coleta
- Colfax
- Collinsville
- Colona
- Colonial Acres
- Colonial Gardens
- Colonial Village
- Colp
- Columbia
- Columbus
- Colusa
- Commanche Village
- Como
- Conleys Patch
- Cookes Subdivision
- Cooksville
- Cooperstown
- Coral
- Cornell
- Cortland
- Corwith
- Cotton Hill
- Cottonwood
- Country Club Estates
- Country Club Estates
- Country Club Hills
- Country Oaks
- Countryside
- Countryside
- Coventry Heights
- Cowden
- Coynes
- Cragin
- Crane Woods Estates
- Crawford
- Crawford Countryside
- Creal Springs
- Creekside
- Crescent City
- Crest Estates
- Crest Hill
- Creston
- Crestwood
- Crete
- Creve Coeur
- Crossville
- Crystal Gardens
- Crystal Lake
- Crystal Lawns
- Crystal Manor
- Cuba
- Culver
- Cumberland
- Curran
- Custer
- Cuyler
- Cypress