The gift of prophecy is used for the building up of the Church. All prophecy prior to the Incarnation, from the protoevangelium in Genesis 3:15 and onward, pointed in some way to Christ. All prophecy now points to Him via the building of His Church (1 Cor 14:12).
And, post-Messianic prophecy is not primarily about the future or future events. It is understood (even by the charismatic movement) as relating to encouragement of believers, the calling of believers to a deeper faith, and the occasional admonishment of those who are weak in faith.
Those who are predicting future events are oftentimes simply making things up or following a worldly spirit. For this reason, all charisms are subject to the Church (CCC 801).