YOU SAID:
Its a lovely day outside.
INTO JAPANESE
その外素敵な一日。
BACK INTO ENGLISH
That's a nice day.
INTO JAPANESE
天気の良い日であります。
BACK INTO ENGLISH
In good weather.
INTO JAPANESE
天気の良い日。
BACK INTO ENGLISH
Weather permitting.
INTO JAPANESE
天気がゆるせば。
BACK INTO ENGLISH
Weather permitting.
That didn't even make that much sense in English.