How's Pot Doing in Montana?

Cannabis is 100% Legal in Montana

Last reviewed: January 13, 2026

Is it legal for adults to possess cannabis in the state of Montana?

YES

"As of January 1, 2021, adults 21 and over may possess and use up to one ounce of marijuana with no criminal penalties." - revenuefiles.mt.gov

Is it legal for adults to buy cannabis in a store in the state of Montana?

YES

"As of January 1, 2022, medical and adult use marijuana is legal to purchase in the state of Montana by individuals 21 and over." - mtrevenue.gov

Is it legal for adults to grow cannabis in the state of Montana?

YES

""An individual who is at least 21 years of age may possess, plant, or cultivate up to two mature marijuana plants and two seedlings... Not more than twice the number of marijuana plants permitted under this subsection may be cultivated in or on the grounds of a single private residence simultaneously."" - leg.mt.gov

Is it legal for medical marijuana patients to possess cannabis in the state of Montana?

YES

"Registered cardholders are eligible to purchase marijuana at any licensed dispensary in Montana." - revenue.mt.gov

Is it legal for medical marijuana patients to buy cannabis in a store in the state of Montana?

YES

"Registered cardholders may purchase marijuana and marijuana products from a licensed dispensary or provider." - mtrevenue.gov

Is it legal for medical marijuana patients to grow cannabis in the state of Montana?

YES

""A registered cardholder who has not named a provider may possess up to four mature marijuana plants, four seedlings, and the amount of usable marijuana allowed by the department by rule."" - leg.mt.gov