It's a sunny, sunny day.

今天是个阳光明媚的日子。

It is a sunny day.

今天是晴天。

Is it sunny in London?

伦敦现在是晴天吗？

It is a sunny morning.

这是一个阳光明媚的早晨。

It's hot and sunny here.

这里又热又晴朗。

The day starts out sunny.

这一天开始时是晴天。

It's hot and sunny today.

今天很热，阳光明媚。

Will it be sunny tomorrow?

明天会晴天吗？

It will be sunny in Harbin.

哈尔滨将会是晴天。

It is probably sunny today.

今天可能是晴天。