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Wisconsin Cannabis Possession Limits (2026)

Restricted: Possessing cannabis is illegal in Wisconsin, and a first offense is a misdemeanor punishable by up to 6 months in jail and a fine of up to $1,000.

RestrictedVerified May 31, 2026

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Possessing cannabis is illegal in Wisconsin, and a first offense is a misdemeanor punishable by up to 6 months in jail and a fine of up to $1,000. A second offense is a Class I felony.

Official source: docs.legis.wisconsin.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Cannabis Possession Limits in states bordering Wisconsin

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IllinoisPermitted
In Illinois, residents 21 and older may possess up to 30 grams of flower, 5 grams of concentrate, and 500 milligrams of THC in infused products, and non-residents may possess half those amounts.
Verified May 31, 2026 · Source: ilga.gov · Full Illinois rule →
IowaConditional
Cannabis possession is illegal in Iowa for anyone who is not a registered patient. Registered patients are capped at 4.5 grams of THC per 90 days, and a practitioner may authorize more for terminal or established patients.
Verified May 31, 2026 · Source: hhs.iowa.gov · Full Iowa rule →
MichiganPermitted
In Michigan, adults 21 and older may possess up to 2.5 ounces on their person, of which no more than 15 grams may be concentrate, and up to 10 ounces at home, where any amount over 2.5 ounces must be locked up.
Verified May 31, 2026 · Source: legislature.mi.gov · Full Michigan rule →
MinnesotaPermitted
In Minnesota, adults 21 and older may possess in public up to 2 ounces of flower, 8 grams of concentrate, and edibles containing up to 800 milligrams of THC, and up to 2 pounds of flower at a private residence.
Verified May 31, 2026 · Source: revisor.mn.gov · Full Minnesota rule →

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