How to say “Please weigh out enough birdseed for the weekend before you put the bag away.” in Japanese

In Japanese

袋(ふくろ)をしまう前(まえ)に、週末(しゅうまつ)の分(ぶん)の鳥用(とりよう)のシード餌(えさ)を量(はか)っておいてくれる？

Fukuro o shimau mae ni, shūmatsu no bun no tori yō no shīdo esa o hakatte oite kureru?