What aspects should we observe the weather from?

Judging by myself, I personally think:

If you get up early in the morning and there is fog, it means that there will be good weather today, usually the sun.

If you feel stuffy and suffocating, accompanied by thick clouds, it will rain.

There are many stars in the night sky, which means it will be fine tomorrow.

Wan Li is cloudless and starry. It should be a fine day. It must be cloudy rain.

(except Chengdu and Chongqing)

Ants move and swallows fly low. These animals give us a hint: it's raining.

Personal point of view.