Wyoming Cannabis Laws 2026: Still Illegal, and Strict Hemp Rules

Wyoming has no medical or recreational cannabis program, even though neighbors Colorado and Montana have legalized. In 2024, it also passed one of the country's strictest hemp laws.

Is weed legal in Wyoming?

No. Possessing, growing or selling cannabis is a crime, and Wyoming doesn't recognize medical cards from other states.

Penalties

• 3 ounces or less: a misdemeanor, with up to 1 year in jail and a $1,000 fine
• More than 3 ounces: a felony, with up to 5 years in prison and a $10,000 fine
• Being under the influence: a separate misdemeanor
• Selling or growing: felony charges

Hemp, delta-8 and THCA in Wyoming

Under Senate File 32, in effect since July 1, 2024, Wyoming counts delta-8, delta-10, HHC, THC-O, THCP and other psychoactive forms of THC as THC, and measures hemp by total THC. That makes most THCA flower and intoxicating hemp products illegal. A federal appeals court upheld the law in 2025.

Crossing the border

Buying legally in Colorado or Montana doesn't protect you in Wyoming. Bringing cannabis across the state line is illegal, and highway patrols watch the I-25 and I-80 corridors.

Driving and work

Driving under the influence of cannabis is a DUI. Employers can test for and ban cannabis use.

Is anything changing in 2026?

No legalization or medical cannabis bill passed in 2026. A bill to give first-time possession offenders a path to probation and dismissal was introduced, but we couldn't confirm that it passed.

Federal law in 2026

Federal law still treats recreational cannabis as illegal. In April 2026, the federal government moved marijuana sold under a state medical license (and FDA-approved cannabis medicines) to Schedule III, but adult-use cannabis is still Schedule I. That means it's still banned on federal land and can't legally cross state lines, even between two legal states.

Separately, a federal ban on intoxicating hemp products takes effect in two steps: synthetic and converted cannabinoids like delta-8 lose their legal status on November 12, 2026, and naturally derived hemp THC (THCA flower, hemp delta-9 edibles and drinks) on December 11, 2026.

Where to shop

There are no legal cannabis dispensaries in Wyoming. Browse smoke and vape shops in Wyoming in our directory.

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Last reviewed October 8, 2026. This guide is general information, not legal advice. Laws change, so check the official sources below before you rely on any detail.