Is it going to be sunny?
No it isn't.
How's the weather tommorow?
It's snowy tommorow.
How's the weather today?
It's foggy today.
Is it going to be windy?
Yes it is.
How's the weather today?
It's rainy today.
How's the weather yesterday?
It was windy yesterday.
How's the weather tommorow?
It's going to be/ It will be stormy tommorow.
How's the weather on Tuesday?
It will be/ It is going to be cloudy on Tuesday.
How's the weather right now?
It's sunny right now/ at the moment.
Is it going to be snowy?
Yes it is.
Is it going to be rainy?
No it isn't
Is it going to be stormy?
No it isn't