Will skies be clear over southern Ontario Friday night?

Lots of high, mid and low-level moisture along with some regions of uplift will be present to cause cloudiness, and the jetstream will be over southern Ontario overnight to contribute some high clouds, but some clear periods are likely over many regions. The charts below show mid-level moisture over most of southern Ontario during the evening.

Will skies be clear over southern Ontario Thursday night?
Partly clear skies are expected with lots of low-level cloudiness possible during the evening and less cloudiness likely by late evening.

Will skies be clear over southern Ontario Sunday night?
Clear skies are expected during early evening, followed by increasing high clouds later in the evening and then widespread cloudiness before morning, except for lots of low-level cloudiness during the evening over some regions south and east of Lake Huron and Georgian Bay. Illustrations below show the forecast charts for low-level moisture during early evening and high-level moisture during late evening.

Willl skies be clear over southern Ontario Saturday night?
Mostly cloudy skies are likely, mainly due to lots of low-level moisture especially south and east of Lake Huron and Georgian Bay, but occasional clear breaks are likely to appear over many regions. Then, some clearing is likely before dawn especially over southwestern regions following the passage of a low pressure trough across central and southern Ontario overnight.

Will skies be clear over southern Ontario Friday night?

Mostly clear skies are likely over most regions overnight after low-level cloudiness dissipates during twilight, except for lots of low-level cloudiness over regions south and east of Lake Huron and Georgian Bay.

Will skies be clear over southern Ontario Thursday night?

Mostly clear skies are likely over most regions after some low-level clouds dissipate following sunset, except for more persistent cloudiness due to low-level moisture south and east of Lake Huron and Georgian Bay (illustrated below for early evening).

Will skies be clear over southern Ontario Wednesday night?
Mostly cloudy skies are expected, followed by partially clearing skies before Thursday morning, as moisture and cloud associated with a low pressure trough (over Quebec and northeastern Ontario) gradually move eastward from southern Ontario overnight.