英文中回答天气的说法是 "What's the weather like?" 或 "How's the weather?"。这两种说法都是问句，是在询问对方对于当前天气的看法。在这两种说法中，"weather" 是名词，意思是 "天气"，"like" 是介词，意思是 "像"。

例句：

A: Hey, how's the weather today?

B: It's raining.

A: What's the weather like in your city?

B: It's sunny and hot.

在这两个例句中，A 问 B 当前的天气情况，B 回答说下雨或晴天热。