Cannabis Laws in Wisconsin

Wisconsin prohibits recreational and medical cannabis; possession remains a criminal offense at the state level.

Automated fact-check pass

13 cited sources

Published May 16, 2026

Last reviewed Oct 30, 2026

This article is general information, not legal advice. Laws change; check current rules with official sources or a lawyer.

↯ The honest take

Wisconsin is one of the few US states where any cannabis possession—even a single gram—is a misdemeanor on first offense and a felony on any repeat. Public polling shows 64–80% support for legalization, but the Republican-controlled legislature has blocked every bill. Some cities decriminalize locally, but state police and sheriffs are not bound by city rules. Don't assume city-level tolerance means you won't face state charges.

Current Legal Status

Wisconsin has not legalized cannabis for adult recreational use or established a medical cannabis program. Cannabis (THC) remains a Schedule I controlled substance under Wisconsin Statute § 961.14. Strong evidence^[1] Possession of any amount is a criminal offense—a misdemeanor on first conviction, and a Class I felony on any subsequent conviction. Strong evidence^[2]

The state permits possession of cannabidiol (CBD) oil under 2017 Wisconsin Act 4 (informally called 'Lydia's Law'), but only in a form without psychoactive effect and with a physician's certification. Strong evidence^[3] Industrial hemp and hemp-derived products containing no more than 0.3% delta-9 THC by dry weight are legal under both state law and the federal 2018 Farm Bill. Strong evidence^[4]

This article is informational and is not legal advice. Laws change frequently. Consult a Wisconsin-licensed attorney for advice on your specific situation. Information last verified October 2026.

Penalties for Possession, Sale, and Cultivation

Wisconsin's penalty structure applies uniform criminal liability to any amount of possession—there is no statutory threshold separating 'personal use' from distribution at the first-offense level. Strong evidence^[2]

Possession (any amount):

First offense: Misdemeanor; up to 6 months in jail and a $1,000 fine. Strong evidence^[2]
Second or subsequent offense: Class I felony; up to 3 years and 6 months in prison and a $10,000 fine. Strong evidence^[2]

Manufacture, distribution, or delivery: Penalties scale by weight under Wisconsin Statute § 961.41(1)(h): Strong evidence^[5]

≤200 g: Class I felony (up to 3.5 years, $10,000 fine)
200 g–1,000 g: Class H felony (up to 6 years, $10,000 fine)
1,000 g–5,000 g: Class G felony (up to 10 years, $25,000 fine)
5,000 g–10,000 g: Class F felony (up to 12.5 years, $25,000 fine)
>10,000 g: Class E felony (up to 15 years, $50,000 fine)

Possession with intent to distribute: Prosecuted under the same weight-based schedule as distribution. Strong evidence^[5]

Paraphernalia: Misdemeanor; up to 30 days in jail and a $500 fine.

Cultivation: Cultivating any number of plants is treated as manufacture and prosecuted by plant count or weight, with no separate 'home grow' category or allowance. Strong evidence^[5]

Driving: Operating a vehicle with any detectable THC in your blood is a separate offense under Wisconsin's OWI statute § 346.63(1)(am). Strong evidence^[6]

Local Decriminalization Ordinances

Several Wisconsin municipalities have passed ordinances reducing the local penalty for small-amount possession to a civil fine rather than criminal prosecution. Cities with decriminalization ordinances include Milwaukee, Madison, Eau Claire, La Crosse, Kenosha, and Racine. Strong evidence^[7]

Crucially, these ordinances do not override state law. Local police generally have discretion to cite under the municipal ordinance or refer the case for state prosecution. County sheriffs and Wisconsin state troopers are not bound by city ordinances and typically enforce state law. Strong evidence^[7]

Milwaukee County and Dane County district attorneys have publicly stated they will not prosecute small possession cases as a matter of prosecutorial discretion, but this policy is subject to change with a new district attorney and does not constitute legalization. Weak / limited^[8]

In practice, the risk of state charges remains real, even in cities with local decriminalization. Federal prosecutors also retain authority to pursue cannabis cases.

Medical Cannabis and CBD

Wisconsin does not operate a medical cannabis program. Multiple medical cannabis legalization bills have been introduced in recent years, including a Republican-backed proposal in January 2024 that would have created a limited, state-run dispensary system with strict eligibility criteria. None have passed both chambers of the legislature. Weak / limited^[9]

Under 2017 Act 4, patients may legally possess CBD oil 'in a form without a psychoactive effect' if they have a physician's certification for treatment of a qualifying medical condition. Strong evidence^[3] The statute does not authorize in-state cultivation or dispensing, so patients typically obtain products from out-of-state sources or hemp-derived products sold in retail stores.

Hemp-derived CBD products containing ≤0.3% delta-9 THC are widely available in Wisconsin retail stores, gas stations, and online. Hemp-derived delta-8 THC and converted delta-9 THC products occupy a legal gray area: Wisconsin has not explicitly banned them, and they are sold openly, but their legal status under federal law and potential for future state regulation remains unclear. Disputed^[10]

Cross-State Travel, Employment, and Firearms

Interstate travel: Crossing into Wisconsin with cannabis legally purchased in Illinois, Michigan, Minnesota, or another neighboring state does not make it legal in Wisconsin. Once you cross the state line, Wisconsin possession law applies immediately. Transporting cannabis across state lines is also a federal offense. Strong evidence^[11]

Employment: Wisconsin is an at-will employment state with no statutory protections for off-duty cannabis use, including hemp-derived products that may trigger a positive THC drug test. Employers can refuse to hire or fire an employee based on a positive cannabis test result. Strong evidence^[12]

Firearms: Under federal law (18 U.S.C. § 922(g)(3)), any user of a controlled substance—including users of state-legal cannabis in other jurisdictions—is prohibited from possessing firearms or ammunition. Wisconsin's concealed-carry licensing operates under state law, but federal ATF Form 4473 asks about marijuana use; false statements on the form are a federal crime. Strong evidence^[13]

Reform Efforts and Political Outlook

Public support for cannabis legalization in Wisconsin is substantial. A 2022 Marquette Law School Poll found that 64% of Wisconsin adults support full recreational legalization and 80% support medical legalization. Weak / limited In 2018, sixteen advisory referenda on cannabis legalization appeared on county and municipal ballots across Wisconsin, and all passed, some by large margins. Weak / limited

Despite this polling support, legalization bills have consistently stalled in the Republican-controlled legislature. Governor Tony Evers included recreational legalization in multiple proposed state budgets; the legislature removed it each time. A January 2024 Senate Republican proposal for a limited medical-only program also failed to advance. Weak / limited^[9]

Wisconsin does not permit citizen-initiated ballot measures, so reform must originate in the legislature. Given current political dynamics and revenue competition from neighboring states that have legalized, incremental medical cannabis reform appears more plausible than near-term adult-use legalization—but neither is assured.

Sources

How this page was made

Generation history

Oct 30, 2026

Fact-check pass — raised 8 flags

Oct 30, 2026

Revision

May 16, 2026

Fact-check pass — raised 3 flags