How much weed can you possess in Montana?
Yes.
Weed is legal in Montana for adults 21+. Updated October 2026.
Possession limits
The recorded possession limit for weed in Montana is 1 oz (28 g).
Yes — weed is legal in Montana for adults 21+.
No separate over-limit penalty text is on file; the headline status still applies.
This is a long-tail extract of the main Montana ruling, published only because a possession figure exists in the dataset.
Frequently asked
Is weed legal in Montana?+
Yes — weed is legal in Montana for adults 21+.
Is weed legal everywhere in Montana?+
The recorded status for Montana as a whole is legal. Local bylaws can still add conditions.
What is the legal age for weed in Montana?+
The recorded minimum age is 21.
How much weed can you possess in Montana?+
The recorded possession limit is 1 oz (28 g).
Can tourists use weed in Montana?+
Visitors to Montana are generally subject to the same recreational cannabis rules as residents. Crossing a border with it remains a separate, usually prohibited, act.
Can you grow weed at home in Montana?+
Home cultivation is recorded as: yes (four plants).