Live Chat I-15 Community Nearby Traffic i15 2024-10-31 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to I15 Helena, MT 24.58 Canyon Creek, MT 30.74 Marysville, MT 35.64 Interstate highway exits close to I15 Exit 226, i15 3.60 Exit 228, i15 3.68 Exit 234, i15 10.42 Interstate highways close to I15 i15 map 3.60 i90 map 77.69 i94 map 313.74 State roads close to I15 MT 434 map 3.01 US 287 MT map 3.10 MT 200 map 21.74