How long does weed stay in the urine test?

I smoke about 3 or 4 times a week. to be specific i smoke bowls. i really need to know an estimate of how long it stays in the urine, because i smoked last friday and i have a drug test soon for an internship. if you are not sure plz dont answer.How long does weed stay in the urine test?
smokeing at much as you do you need 2 to 3 weeks, the more fat you have the longer it will take, If you need to know if you are clean go to walmart or cvs and get a home test it cost 15 to 20
one of my friends told me like a week!
30 days
Marijuana can stay in your system for up to a month. It is stored in fat cells therefore you cannot flush it out with water.
three months-- better postpone that interview.
takes bout a month and then some i suggest payin someone else for there pee pee
it staying in your system for up to 30 days... you may want to think about going to your local GNC or vitamin world and getting a complete detox... and also things that will help cleanse your system like that are things like the "48 hour magical Hollywood diet" but if you want that internship you may want to think about doing both of the steps above and eating alot of fruits and veggies to get your system clean... otherwise you will test positive... also be sure to drink ALOT of water!!
2 weeks to 1 month
Stays even longer in blood/hair just in case they pull a suprise drug testing method, which alot of companies do! They tell you a urine test, and say that is subject to change. Good Luck!