I watch movies all night on very rainy days like this.
I watch movies all night on very rainy days like today.
On days with heavy rain like today, I stay in and watch movies all night.
こんな大雨の日は夜通し映画を観ます
I watch movies all night on very rainy days like this.
I watch movies all night on very rainy days like today.
上記が一番シンプルな文章だと思います。
もっとこなれた英語にしたい場合は
大雨＝heavy rain/ rainfall
家にこもる＝stay in
を使って下記のように言うといいでしょう。
On days with heavy rain like today, I stay in and watch movies all night.
On a day like this when it's pouring rain, I just watch one movie right after another all through the night.
この場合、次のような言い方ができますよ。
ーOn a day like this when it's pouring rain, I just watch one movie right after another all through the night.
「こんな大雨の日は、夜通し映画を次々に見ます」
one right after another「次々に」
all through the night「夜通し」
ご参考まで！
日本 
カナダ 
