You can't say "At the Weekend", it's not proper english. You can say "on the weekend" if you mean, for example, "we can't go to Disneyland today, but maybe on the weekend we can."
Most people will say le weekend, though there are purists who will insist on saying la fin de semaine.
on sera en France ce week-end (oh[n] srah ah[n] frah[n]ss suh week-end)
le weekend
In Tagalog, you can say "Magandang weekend!" to wish someone to have a good weekend.
Saturday and Sunday.
You can say, "Have a great weekend, everyone!" Alternatively, you might say, "Wishing everyone a fantastic weekend!" Both options convey your well wishes for the weekend in a friendly manner.
Prettig weekend!
Have a good weekend
We do not use "at" with days. We say "on the weekend" or "for the weekend." Go picnic on the weekend.
le weekend je porte
over the weekend.