The overcast sky indicates the coming of the rainstorm.

乌云密布的天空预示着暴雨的到来。

Whenever it's such an overcast day, the cat looks listless.

每当到了这种阴暗天，这只猫就显得无精打采。

This dark cloud overcasts the entire sun.

乌云遮盖了整个太阳。

The weather forecast is for showers and overcast skies.

气象预报说有阵雨而且阴天

For three days it was overcast.

连着三天都是阴天。

It was muggy and overcast.

那天天气闷热又潮湿，阴沉沉的。

The weather forecast is for showers and overcast skies.

气象预报说有阵雨而且阴天。

The overcast sky is stifling.

阴暗的天空令人感到沉闷。

Tomorrow will be overcast.

明天是阴天。