Idaho Cannabis Laws 2026: Still Fully Illegal, and What's on the Ballot

Idaho is one of the few states with no legal cannabis program of any kind: no recreational, no medical, and no low-THC exception. That's true even though every neighboring state allows some form of legal cannabis.

Is weed legal in Idaho?

No. Possessing, growing or selling cannabis is a crime for everyone, including people with a medical card from another state.

Penalties

• 3 ounces or less: a misdemeanor, with up to 1 year in jail and a $1,000 fine
• More than 3 ounces, up to 1 pound: a felony, with up to 5 years in prison
• Growing any number of plants: a felony
• Paraphernalia: a misdemeanor

Larger amounts bring mandatory minimum prison sentences.

CBD and hemp in Idaho

Idaho is stricter than federal law on CBD: products must contain 0% THC and come from approved parts of the plant. A full-spectrum CBD product with even trace THC can lead to charges. The only cannabis-derived medicine allowed is the FDA-approved prescription drug Epidiolex.

Crossing the border

Buying legally in Washington, Oregon, Nevada, Montana or Utah doesn't protect you once you're back in Idaho. Bringing cannabis across the state line is illegal, and state police patrol border areas.

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?

Yes, there's a measure on the ballot. On November 3, 2026, Idaho voters decide HJR 4, a constitutional amendment passed by the legislature. A yes vote would give the legislature the sole authority to legalize marijuana and other psychoactive drugs, which would keep citizens from legalizing cannabis through ballot initiatives. A no vote keeps the current system, where voters can still try the initiative route. A separate citizen initiative for medical cannabis did not make the 2026 ballot.

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 Idaho. Browse smoke and vape shops in Idaho in our directory. Listings under Idaho dispensaries are CBD and hemp shops, which must follow Idaho's zero-THC rule.

---

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.