Is it possible to profit from some of this money in the short term before I need to access it?
Sure, it's possible. But if the stock market decides to "correct" (or even crashes), you'll be in a world of hurt.
Thus, since it's so important that you not lose this money, just stick it in an online bank earning 1.2%, and withdraw "enough" twice a month.
EDIT: by "withdraw", I mean to transfer to your checking account.