The sun is shining.

阳光灿烂。

It‘s drizzling.

阴雨蒙蒙。

The wind is blowing.

风呼呼的吹。

The rain is falling.

落大雨。

It‘s hailing.

下冰雹。

The rain is pouring down.

倾盆大雨。

It‘s snowing.

下雪。

It‘s thundering.

打雷。