Will potatoes marinated in olive oil and herbs turn watery overnight?

Potatoes marinated in olive oil and herbs may release some moisture overnight, but they typically won't turn watery. The oil can help to seal in moisture while the herbs infuse flavor. However, if the potatoes are cut into small pieces or if the marinade is overly watery, they may absorb some liquid, which could lead to a slightly different texture. For best results, store them in an airtight container to minimize excess moisture.