Don't go out in( ) cold weather 括号里填such还是so?

问题描述:

Don't go out in( ) cold weather 括号里填such还是so?
Don't go out in( ) cold weather
括号里填such还是so?
请说明理由~

such
such+不可数名词(短语)/ 复数名词(短语)
such a/ an+单数可数名词(短语)
so+形容词/副词