Will skies be clear over southern Ontario Wednesday night?
Clear skies are expected following some low-level clouds over some regions during the early evening, caused by low-level moisture (illustrated below for early evening) which is forecast to move eastward from southern Ontario during the evening.

Will skies be clear over southern Ontario Tuesday evening?
Mostly cloudy skies are expected, although some moonlight may appear during early evening and give the impression of partly clear skies.

Will skies be clear over southern Ontario Monday night?

Lots of jetstream-level moisture (illustrated below for early evening) is expected to cause mostly cloudy skies due to high clouds, although bright super moonlight may give the appearance of clear skies from locations where urban light makes the widespread high cloudiness hard to see.

Will skies be clear over southern Ontario Sunday night?
Clear skies are expected.

Note, no more blog updates will be posted until Nov. 14.

Will skies be clear over southern Ontario Saturday night?
Lots of high, thin cloudiness along the jetstream (illustrated below for late evening) will probably cause skies to be partly cloudy, although bright stars and moonlight may give the impression of clear, starry skies. Also some mid-level clouds may move over some regions, caused by a region of mid-level moisture which is forecast to move over southern Ontario (illustrated below for late evening).

Will skies be clear Friday night over southern Ontario?

Mostly clear skies are expected, except for some scattered low clouds that may appear, caused by low-level moisture flowing southward from Lake Huron and Georgian Bay (illustrated below for early evening) until early morning, when increasing low-level as well as jetstream-level moisture is likely to cause some cloudiness to develop. High, thin jetstream-level clouds may also appear from time to time since the jetstream is and will be over southern Ontario (illustrated below for late evening).

Will skies be clear over southern Ontario Thursday night?
Mostly cloudy skies are likely during the evening over most regions, followed by clearing skies after midnight, due to a region of uplift over southern Ontario during the evening and lots of low-level moisture flowing southeastward over southern Ontario (illustrated below for early evening) that will be available to form low-level clouds over many or most regions.