Will skies be clear over southern Ontario Saturday night?

Partly clear skies may develop during mid-evening as upper-level moisture and uplift move eastward. Some low-level cloudiness is likely as a result of low-level moisture (illustrated below) and lake-effect cloudiness flowing eastward from Lake Huron and this could cause partly, mostly or completely cloudy skies over southern Ontario overnight before increasing mid to high-level moisture begins to move across southern Ontario before sunrise Sunday.