Will skies be clear over southern Ontario Friday night?

Cloudy skies are expected, except for partly or mostly clear skies over regions near, north and east of Lake Ontario during the early evening until high cloudiness increases as jetstream-level moisture spreads eastward across southern Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Thursday night?

Partly cloudy skies are expected over southern regions, and mostly clear skies over northern parts of southern Ontario, due to high cloud caused by jetstream-level moisture which is forecast to be over southern Ontario overnight (illustrated below for late evening). Also, some low and mid-level cloudiness is likely over many regions during the evening until clouds generated during the afternoon dissipate later in the evening.

Will skies be clear over southern Ontario Wednesday night?

Mostly clear skies are expected, except for some cloudiness during the evening over some regions until clouds generated during the afternoon dissipate by late evening, and except for some jetstream-level high clouds over southwestern regions before morning.