this weekend
Refers to the upcoming weekend (Saturday and Sunday) of the current week. In Japanese, the week is often considered to start on Sunday or Monday, so context determines whether it means the immediately following weekend or the weekend of the current calendar week.
Do you have any plans this weekend?
I have a friend's wedding this weekend.
I'm planning to go see a movie with a friend this weekend.
This weekend is busy, so I can't go anywhere.
We're planning to go to a hot spring with the family this weekend.
Compound of 今 (こん, 'this') + 週末 (しゅうまつ, 'weekend').