Don't put yourself in a bad fucking position. Buy your weed from the locals. I've done it plenty of times when I was in Red River, New Mexico. Hell after the first couple of days, I had a dealer for every summer I was there.
Edit: Even though I don't want you to take any weed with you, you should check out NORML for educational benefit. Its handy to have around if you need a lawyer too.
Here's an interesting story in CA. You can look up your state and search for specific laws
http://www.norml.org/index.cfm?Group_ID=4236