Decatur Illinois Traffic 2024-12-21 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Decatur Illinois Elwin, IL 7.14 mi Mt Zion, IL 7.54 mi Oakley, IL 10.96 miInterstate highway exits close to Decatur Illinois Exit 141b a, i72 9.16 mi Exit 144, i72 9.56 mi Exit 138, i72 9.89 miInterstate highways close to Decatur Illinois i72 map 9.16 mi i55 map 51.62 mi i74 map 53.74 miState roads close to Decatur Illinois IL 105 map 0.31 mi IL 121 map 1.53 mi US 36 IL map 1.90 mi