WThe weather is good, (today) – the sun is out and the wind is blowing. The weather is good (today) – the sun is out and the wind is blowing.

WThe weather is good, t. The sun is out and the wind is blowing. The weather is good. The sun is out and the wind is blowing.

I would say “the weather is nice”.

WThe weather is good, the sun is out, and the wind is blowing. The weather is good, the sun is out, and the wind is blowing.

I fixed some minor issues. Additionally, I think "it's windy" or "it is windy" is more natural than "the wind is blowing," but there's nothing wrong with the way you wrote it.

WThe weather i's good, the sun i's out, and the wind is blowing. The weather's good, the sun's out, and the wind is blowing.