天气冷：

　　天气冷只有cold?!如果是微冷可以说chilly，如：Autumn mornings are often a bit chilly and I tend to put on a light jacket, rather than a heavy coat or a scarf. 秋天的早晨通常有点凉凉的。我一般会穿上一件包的夹克，而不是穿件厚外套或者系围巾。

　　如果是很冷，可以说freezing，如My hometown in winter is freezing. 我的家乡在冬天的时候很冷。

　　天气热：

　　There will be a sun spell in the next three days. 接下来三天将会连续天晴。

　　Oh, that's such a lovely day. Why not go basking in the sun? 天气很好呀，咱们出去晒晒太阳吧。

　　如果说超级热呢?不要告诉我very hot 哦，面壁去~~It's baking today. 今天真的骄阳似火。(像烤面包有木有!);或者你也可以说：I'm soaked up in sweat in this muggy weather. 天气很闷热，我大汗淋漓。