The wind's rising.

风刮起来了。

It's blowing hard.

风刮大了。

Apparently the wind's getting stronger.

显然风越来越大。

The wind's getting stronger.

风越刮越大。

The wind's going down.

风势在减弱。

The wind has stopped.

风停了。

It's breezy and pleasant today.

今天凉风习习，天气宜人。

It's rather windy today.

今天风很大。

It looks as if a storm is coming up.

看起来要有大风暴了。