"天气愈变愈坏"可以翻译为 "The weather is getting worse and worse" 或者 "The weather is deteriorating more and more".
其中,“getting worse and worse” 是比较常用的表达,形象地描述了天气逐渐变差的过程;“deteriorating more and more” 则更正式一些,也表达了类似的意思,即天气在不断恶化。