The weather is very upcertain.

天气非常不稳定。

The temperature is below zero.

气温是零摄氏度以下。

lt's a beautiful day today.

今天天气真好。

There are many clouds in the sky.

天上有许多云。

The sky is very dark.

天空非常昏暗。

The days are getting cooler.

日子一天天凉快起来了。

It's breezy and pleasant today.

今天凉风习习，天气宜人。

The snow's falling thick and fast.

大雪纷飞。

It's sunny but quite cold.

阳光很好，但却很冷。

It's extremely¹ hot and muggy².

天气非常炙热闷人。

Why do you like summer?

你为什么会喜欢夏天呢?

Spring is my favorite season.

春天是我最喜欢的季节。

I'm so happy the weather is hot.

天气热我很高兴。