The most that anyone could hope for is an educated guess of where the real estate market sentiment is heading. If anyone could predict the actual future price movements, they would buy all the inventory and keep it for themselves.
Real estate agents look at the number of listings month by month, along with the average time a listing stays on the market. Listings with short times before sold mean hot market (aka sellers market).
Even without applying the same tools of a real estate agent, you can still get a feel of the real estate market once you start the house hunting process. Ask yourself, are the sold prices lower or close to the asking price? Are homes not moving and repricing their asking price to lower?