How to predict the weather according to the density of nebulae and the cloudy and sunny days of the moon?

If you look at the stars or the moon in the sky, it means that there are not many clouds in the sky, which means that it is likely to be sunny tomorrow. Or on the other hand, Dallas goes to the auditorium anyway. According to these, we can judge that there are not many clouds in the sky, and then feel the humidity of the air, whether it is stuffy or not. These are all experiences. You should ask your grandfather's generation. They will know more.