It looks like rain.

看样子要下雨了。

By the way, it looks like rain.

对了，看来似乎要下雨了。

It looks like rain, doesn't it?

天好像要下雨，不是吗？

Mother: It looks like rain.

母亲：好像要下雨。

It looks like rain again.

看起来又要下雨了。