I don't think anybody has that crystal ball but the president.

I can't speak for the future. I have no crystal ball.

I'm not in the business of reading tea leaves. I don't have a crystal ball.

He who lives by the crystal ball will eat shattered glass.

We don't have a crystal ball but I think we're well prepared to respond to any eventuality.

He who lives by the crystal ball soon learns to eat ground glass.