Cloudy weather is a common occurrence in many parts of the world. If you want to describe the weather as cloudy in English, there are several words and phrases you can use. Here are some of the most commonly used expressions:

1. Cloudy - This is the most basic word to describe the weather when there are clouds in the sky. For example, "It's a cloudy day today."

2. Overcast - This word is used to describe a sky that is completely covered in clouds. For example, "The sky is overcast today and it looks like it might rain."

3. Partly cloudy - This phrase is used to describe a sky with some clouds but also some patches of blue sky visible. For example, "It's partly cloudy today, with occasional bursts of sunshine."

4. Mostly cloudy - This phrase is used to describe a sky where most of the sky is covered in clouds but there are still some patches of blue sky visible. For example, "It's mostly cloudy today, but there are a few patches of blue sky here and there."

5. Cloud cover - This is a more technical term used to describe the amount of sky that is covered in clouds. For example, "The cloud cover today is about 80%, which means it's going to be a pretty cloudy day."

No matter which word or phrase you choose to use, it's always a good idea to check the weather forecast to see if you need to prepare for rain or other inclement weather.