Clima en todas las ciudades de Illinois
R
- Radford
- Radom
- Raeftown
- Randall Hills
- Rantoul
- Raritan
- Ravenswood
- Ravenswood Gardens
- Ravenswood Place
- Ravinia Park
- Raymond
- Raynor Park
- Reddick
- Redgate Ridge
- Redmon
- Reeds
- Rees
- Regal Acres
- Reily Lake
- Reno
- Reynolds
- Richmond
- Richton Park
- Richwoods
- Riddle Hill
- Ridgecrest
- Ridgeland
- Ridgely
- Ridgewood
- Ridgway
- Riggston
- Riley
- Ringwood
- Rio
- Ripley
- Rising
- River Forest
- River Forest
- River Glen
- River Grove
- River Woods
- Riverbrook Estates
- Riverside
- Riverstream
- Riverton
- Riverview
- Riverview Mobile Home Park
- Riverwalk
- Riverwoods
- Roanoke
- Robbins
- Robert Brooks Homes
- Robinson
- Rochelle
- Rochester
- Rock City
- Rock Falls
- Rock Island
- Rock Run Park
- Rockdale
- Rockdale Junction
- Rockefeller
- Rockford
- Rockton
- Rogers Park
- Rolling Meadows
- Rollins
- Rome
- Romeo
- Romeoville
- Rondout
- Rooks Creek
- Rosamond
- Roscoe
- Rose Lake
- Roselle
- Rosemont
- Rosemont
- Roseville
- Roslyn
- Round Lake
- Round Lake Beach
- Round Lake Heights
- Round Lake Park
- Roxana
- Roxbury
- Royal Heights
- Royal Lake Resort
- Royalton
- Ruby
- Rugby
- Ruma
- Rumpler
- Rural Hill
- Rushville