Will skies be clear over southern Ontario Sunday night?
Mostly clear skies are expected, except for some mid-level cloud that will likely be visible at sunset due to some mid-level moisture over eastern regions of southern Ontario (illustrated below for the hour before sunset), and except for some high-level thin cloudiness that will most likely be visible occasionally over most regions, caused by high-level clouds moving eastward from strong thunderstorm activity over the western Great Lakes region during Sunday.