Harvest early

I have 4 outdoor plants that are 3-4 weeks into flowering ...i have to get rid of them this week because of some problems ...my question is can i still harvest them??willl i still get high if i dry and cure them right??

You can get high smoking leaf if you smoke enough of it, so I don't see why you wouldn't get some effect from it.
imo bud that is harvested early is always hard to burn and nothing special to smoke, but if you have to pull them up they won't be completely wasted.