Most girls stop growing at the age of 18, some earlier, and most boys stop growing once they reach 21, yet again, some stop earlier. It is probable that you will grow a bit more, but it may only be minimal.
You are not specifying if you are a young man or a young woman. In the second case you have probably finished growing, but if you are a man, then you can probably grow some more in the next year. It is almost impossible to predict it.
At 15, you could still be growing. But at your height you may only grow a small amount more, possibly less than an inch over the time til you become 18.
