YOU SAID:
I'm so glad the weather is nice today.
INTO JAPANESE
今日は天気がいいのでうれしいです。
BACK INTO ENGLISH
Today the weather was nice, so glad.
INTO JAPANESE
今日は天気がいい、とてもうれしい。
BACK INTO ENGLISH
Today the weather is nice, very nice.
INTO JAPANESE
今日は天気がいい、非常にいいです。
BACK INTO ENGLISH
Today the weather is nice, very nice.
That didn't even make that much sense in English.