Possession
1 oz (28 g)
Is medical marijuana legal in Montana?
Yes.
Medical marijuana is legal in Montana. Updated October 2026.
Tourists
Visitors to Montana are generally subject to the same medical cannabis rules as residents. Crossing a border with it remains a separate, usually prohibited, act.
Home grow
yes (four plants)
Medical cannabis is legal in Montana for qualifying patients.
The recorded ruling
WhereItsLegal indexes medical marijuana in Montana as legal. Medical cannabis is legal in Montana for qualifying patients.
The recorded possession limit for medical marijuana in Montana is 1 oz (28 g).
Home cultivation is recorded as: yes (four plants).
Visitors to Montana are generally subject to the same medical cannabis rules as residents. Crossing a border with it remains a separate, usually prohibited, act.
Laws move. The last verified date on this ruling is 2026-10-19. Always read the linked source and local statute before acting.
Long-tail notes
How Montana compares nearby
Frequently asked
Is medical marijuana legal in Montana?+
Yes — medical marijuana is legal in Montana.
Is medical marijuana legal everywhere in Montana?+
The recorded status for Montana as a whole is legal. Local bylaws can still add conditions.
How much medical marijuana can you possess in Montana?+
The recorded possession limit is 1 oz (28 g).
Can tourists use medical marijuana in Montana?+
Visitors to Montana are generally subject to the same medical cannabis rules as residents. Crossing a border with it remains a separate, usually prohibited, act.
Can you grow medical marijuana at home in Montana?+
Home cultivation is recorded as: yes (four plants).
When was this Montana medical marijuana ruling last verified?+
Last verified 2026-10-19.
Can you fly with medical marijuana into Montana?+
Domestic legality in Montana does not make it legal to carry medical marijuana across an international border. Border rules are separate and typically prohibit it.
People also ask
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Not legal advice. This page is generated from a typed dataset. If a fact is missing, the section is omitted rather than guessed. Methodology.