How long does weed stay in your system? A little bird tells me you want to know this so you can wait out the test and vouch safe a negative result! Well Good luck.
The answer isn't the same for everyone; after a smoke the weed does not actually remain in the system but a derivative, an Active agent called THC, i guess by now you must be mighty familair with the word, remains in your system to rat you out in a test.
Tricky thing is THC could stay in your system for 'forever'.Yes! Forever. This is because it is stored in fatty tissues of various organs. But remaining in your system doesn't mean it remains detectable/active forever, THC only stays active for a limited amount of time in your system.
Marijuana Detection Table