How to say “Can we open a window? The classroom feels like an oven after lunch.” in Japanese

In Japanese

窓(まど)、開(あ)けてもいい？ 昼(ひる)ごはんのあとの教室(きょうしつ)は、まるでオーブンだよ。

Mado, akete mo ī? Hirugohan no ato no kyōshitsu wa, maru de ōbun da yo.