Will skies be clear over southern Ontario Sunday night?

It looks like skies will be mostly clear during the evening, except for some low-level clouds over southern Ontario during the afternoon that might persist during and after sunset before dissipating, and except for some high cloudiness that will cause mostly cloudy skies in southwestern regions by sunset and will be gradually increasing overnight over the rest of southern Ontario.
Over regions east of southwestern Ontario, the high cloudiness may cause visible high clouds at some times and other times not be visible, until increasing mid to high-level moisture spreads eastward over southern Ontario (illustrated below for the hour after midnight) and causes mostly cloudy skies by morning over most regions.