Speed Limit Laws: Montana

Rural Interstates

Cars (MPH) Trucks (MPH)
80 65

Urban Interstates

Cars (MPH) Trucks (MPH)
65 65

Other Limited Access Roads

Cars (MPH) Trucks (MPH)

Day: 70

Night: 65

Day: 70 (Light Trucks), 60 (Heavy Trucks)

Night: 65 (Light Trucks), 55 (Heavy Trucks)

State