yes, it`s a small difference though and doesn`t always apply.`How is the weather?` is asking about the current weather, and `What is the weather like?` asks how is the weather usually, generally or on average. Also `What is the weather like?` is usually asked about a specific place other than where they live. :)

The first one is more American, the second one is more English. They both mean the same. Cheers! Good luck!

In my opinion, two questions have no difference and get the same answer

Whats the weather like? is answered : It's sunny,hazy,foggy,clear,smoggy,windy,humid,muggy,raining,drizzling,snowing Hows the weather? is answered : It's warm,cool,cold,freezing

I do not really think so, " Hows the weather?" meaning, "What is it like?" and " What is the weather like?" meaning you want to know if it it rainy or hot, or something.