How's the weather? What are the two usages? What are they?

According to Baidu Library, how and what of weather usage are as follows:

When using what to ask weather questions, the common sentence structure is: whatistheweatherlike? How's the weather? When using how to ask weather questions, the common sentence structure is: howistheweather? How's the weather?

How asks what the weather is like, for example, is it good? How indicates how hot or cold the weather is, mainly indicating the degree. It means that we already know whether the weather is cold or hot, so we only express our feelings about heat or cold.

What asks what the weather is like, for example, sunny, rainy or cloudy. Using what means asking what the weather is like, cold or hot.