Wyoming remains a stronghold of prohibition: as of 2026, THC is still illegal for recreational purposes, while only low‑dose THC‑rich cannabis oil is permitted for a narrow set of medical conditions. The state has taken modest steps toward decriminalization, but full legalization is not on the horizon yet.
Current Legal Status
Wyoming’s statutes define marijuana as any plant containing more than 0.3% THC. Possession of up to one ounce for personal use carries a civil citation of $100 and possible jail time, reflecting the “low‑level misdemeanor” approach adopted in 2023. Retail sales of THC‑containing products are prohibited, and cultivation remains a felony. The legal framework mirrors the 2022 Wyoming Revised Statutes, which have not been amended to broaden THC allowances.
Medical Use
In 2021, the Wyoming legislature enacted a limited medical cannabidiol (CBD) program. The law allows certified patients to possess and consume CBD oil containing no more than 0.3% THC for conditions such as severe epilepsy, multiple sclerosis, and chemotherapy‑induced nausea. Patients must obtain a written recommendation from a board‑approved physician and register with the Wyoming Department of Health. The program’s strict THC cap keeps it distinct from broader medical marijuana regimes seen in neighboring states.
Decriminalization Efforts
Local jurisdictions have pushed for change. In 2024, the city of Cheyenne voted to reclassify possession of up to half an ounce from a misdemeanor to a civil infraction, reducing penalties to a $50 fine. However, this municipal ordinance does not override state law and is limited to city limits. State‑wide bills to decriminalize THC have been introduced each legislative session since 2022 but have consistently stalled in committee due to opposition from the Wyoming Medical Association and conservative lawmakers.
Future Outlook
Public opinion is shifting: a 2025 poll by the Wyoming Policy Institute showed 54% of respondents support legalizing recreational cannabis, up from 38% in 2019. Despite growing support, the state’s Republican‑dominated legislature continues to prioritize law‑and‑order policies. Analysts predict incremental reforms—such as expanding the medical CBD list or increasing decriminalization thresholds—rather than full legalization in the near term.
What is the legal penalty for possessing THC in Wyoming?
Possession of up to one ounce is treated as a low‑level misdemeanor, punishable by up to 30 days in jail and a $250 fine, though many first‑time offenders receive a civil citation of $100.
Can Wyoming residents grow their own cannabis for personal use?
No. Cultivation of any cannabis plant containing more than 0.3% THC is a felony, carrying up to five years in prison and a $10,000 fine, regardless of the intended use.
Does the medical CBD program allow any THC at all?
Yes, but only up to 0.3% THC by dry weight. The oil must be derived from federally approved hemp and registered with the state health department.
Are there any cities in Wyoming that have reduced THC penalties?
Cheyenne enacted a local ordinance in 2024 that reduces penalties for possession of up to half an ounce to a $50 civil fine, but the rule applies only within city limits.
What timeline is expected for possible statewide legalization?
Given the current political composition, experts estimate that meaningful statewide reform—whether expanded medical access or decriminalization—will likely take several legislative sessions, pushing full recreational legalization beyond 2028.