Let's put off the picnic until next week,when the weather may be better.when the weather may be better.一句是什么从句?什么从句,修饰什么?

问题描述:

Let's put off the picnic until next week,when the weather may be better.
when the weather may be better.一句是什么从句?
什么从句,修饰什么?

定语从句,修饰 next week

The wether may be better next week.