Force users often have precognitive flashes, experiencing waking dreams or visions about people and situations through their abilities. These powers are rarely so clear and obvious as to provide unequivocal visions of the future, but they are certainly enough to give Force users pause for thought when they have a "bad feeling about something".
The power of foresight has been used in countless different ways by countless different Force users throughout history. Some use it to gain vague images far into the future, while others use it to predict the movements of their foes or see an unexpected event soon to happen.