week after next
Refers to the week that follows the upcoming week. Often used adverbially with に or as a standalone temporal noun.
再来週の月曜日に会議があります。
There is a meeting on Monday of the week after next.
I will finish that work by the week after next.
I'm planning to meet up with a friend the week after next, for the first time in a while.
There's a meeting on Monday of the week after next.