How to say weather in ancient Chinese?

The sky, it can refer to time, such as "it's getting late", or it can refer to the weather, such as "Shen Zhi said,' It's hot!'" Road flyover Lu Huai was told to lay a reed mat under the tree. In the seventh chapter of the Water Margin, some people directly use the word "weather", such as the line written by Wei of the Three Kingdoms: "The autumn wind is bleak, the weather is cool, and the vegetation is like frost. "