make a prediction abotu Ponyboy's "premonition." how could this be a himt about somethimg being foreshadowed?

I think you might be referring to Chapter 8. Foreshadowing in Chapter 8, and Ponyboy is conscious of it as a character as well as as the narrator. As he and Two-bit ride the bus home, he thinks, "I had a sick feeling in my stomach and it wasn't from being ill. It was the same kind of helplessness I'd felt that night Darry yelled at me for going to sleep in the lot. I had the same deathly fear that something was going to happen that none of us could stop. I think something bad at the rumble or around that time will happen to the gang. Dally perhaps?