Will a dog be okay outside if he isn’t an outside dog?

I recently acquired a dog this past Tuesday! He’s great but still needs training. He is an indoor apartment dog (lab mix) and very loving. I want to go home for the holidays however my grandparents REFUSE indoor pets and stated he can be outside. Is it okay to have him there for a day and night outside even if this won’t be his norm? I’m also worried about him chasing small animals or getting the taste for it/blood. I have a cat I’m slowly trying to introduce him to and don’t need him to be even more triggered! My grandparents live in the country.