This is the 14145th most frequent Korean word.
며칠은
"며칠은" means "for a few days."
Here, '며칠은' is describing an indefinite but usually short period, emphasizing the duration of 'a few days.'
그는 며칠은 집에 있을 예정이다.
He plans to stay home for a few days.
In this sentence, '며칠은' indicates the positive emotional effect lasting several days.
방문 이후로 며칠은 기분이 좋았다.
I felt good for a few days after the visit.
This usage of '며칠은' highlights the expected duration of rain activity lasting a short number of days.