Oct 10. Columbus Day.
it depends on your locale. In US, there is no long weekend in August
Personally, 'this weekend' refers to the closest upcoming weekend. As in if it's Wednesday, this weekend would start in a few days. Next weekend refers to the upcoming week, as in after the closest weekend.
The first weekend in October (Oct. 3rd is Labour Day).
Next weekend.
If your talking about two weekends from now its next weekend
Labour Day falls on a Monday this year, which makes the first weekend in September a 3 dayer.
It depends on your locale, but in the US, October's long weekend is from the 8-10 of October (Columbus Day is on Monday, the 10th).
The weekend of the week you are currently in is this weekend, Next weekend would refer to the week after that. Then of course it depends on who you are talking to, If you came up to me on monday and said lets do something next weekend, I would assume you mean the very next weekend. If you said the same thing on friday I would then assume you mean the weekend after this coming weekend. Confused? That is why I end up saying things like two weekends from now, or the weekend after this. Unless you know how the other person thinks you can not be sure so clarify.
The Magyars are wanting to visit us next weekend.
im pretty sure it just called a long weekend or the holiday itself.
Wisconsin
You would say "le week-end prochain" in French to mean "next weekend".