La première semaine
You would say "Cette semaine" Which means this week in french!
Into the week is "pendant la semaine" in French.
In French, "last week" is "la semaine dernière", or possibly also "la semaine passée".
"ta semaine"
Bonne semaine!
Semaine suivante
toute la semaine
bon week-end
"passe / passez une bonne semaine"
le week-end - la fin de semaine
Next weekend is "le week-end prochain" in French. The word has been borrowed in French but is spelled with an hyphen.le weekend prochain
You would say "Passe une excellente semaine" in French.