Chinese phrase
要下雨了 yào xià yǔ le
Meaning
It looks like it's going to rain
When to use it
This phrase says that rain is likely to start soon. It is a common, neutral way to give a weather warning or mention a need for an umbrella.
Example dialogue
出门前，要下雨了，你带伞了吗？ chū mén qián yào xià yǔ le nǐ dài sǎn le ma
Before you go out, it looks like it's going to rain. Did you bring an umbrella?
还没带，我回来拿。 hái méi dài wǒ huí lái ná
Not yet. I'll go back and get one.