1.Will it be snowy tomorrow?（作否定回答）
No,it won't.
2.It will be (windy) in the afternoon.(对划线部分提问）
What will the weather be like in the afternoon?
How will the weather be in the afternoon?
3.There will be rain in the morning.(改为一般疑问句）
Will there be rain in the morning?
4.It,s going to be warm.(改为否定句）
It's not going to be warm.
5.The snow will stop (the day after tomorrow).（对括号部分提问）
When will the snow stop?