Will skies be clear over southern Ontario Monday night?
Partly cloudy skies are expected during the evening over many regions, due to cloud and moisture remaining from afternoon cloudiness, as well as some mid-level moisture (illustrated below for late evening) and then less cloudiness is likely after midnight.

Will skies be clear over southern Ontario Sunday night?
Mostly clear skies are expected, except for some high, thin cloud that will likely be visible at sunset and during the early evening, due to some jetstream-level moisture which is forecast to move over southern Ontario during the evening and then southward from the province (illustrated below for the hour near sunset).

Will skies be clear over southern Ontario Saturday night?
Clear skies are expected, except for some cloudy periods near and north of the GTA, especially during the evening, due to mid-level moisture which is forecast to move southward across the GTA and Lake Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Friday night?

Skies are likely to appear mostly cloudy during the evening over most of southern Ontario due to high-level cloud that may be thick enough to appear overcast over many regions, due to a thick plume of jetstream-level  moisture (illustrated below for late evening) that is forecast to gradually move southward from southern Ontario overnight.

Will skies be clear over southern Ontario Thursday night?

Partly clear skies are likely, except for some high cloud that is likely to appear later in the evening, caused by jetstream-level moisture which is forecast to move over southern Ontario overnight (illustrated below for late evening). Also, some low-level clouds are likely near and south of western Lake Ontario during the evening.

Clear skies are expected over southern Ontario Tuesday night, due to a high pressure ridge over southern Ontario (illustrated below for late evening), except for some increasing high cloudiness over southwestern regions during early morning.

Will skies be clear over southern Ontario Monday night?

Mostly cloudy skies are likely over most regions during the evening, due to lots of mid-level moisture over southern Ontario (illustrated below for late evening) except for partly or mostly clear skies over southwestern regions, followed by gradually clearing skies overnight as the moisture and cloudiness moves eastward. 

Note, no updates will be posted during the weekend.

Will skies be clear over southern Ontario Thursday night?
Clear skies are expected by the end of twilight, after some patches of mid-level cloud that may be visible at sunset dissipate.

Will skies be clear over southern Ontario Wednesday night?

Clear skies are likely over most regions, except for some low clouds that may appear over southwestern regions, due to some low-level moisture which is forecast to be over southwestern Ontario overnight (illustrated below for early Thursday).

Will skies be clear over southern Ontario Tuesday night?

Clear skies are expected, except for some high-level clouds that may appear over some regions, due to some high-level moisture that is forecast to move over some regions overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Monday night?

Clear skies are likely over most regions, except for some cloudiness over the GTHA and vicinity of western Lake Ontario, due to mid and low-level moisture (illustrated below for late evening) which is forecast to remain over these regions during the evening before moving eastward from southern Ontario overnight.

Will skies be clear over southern Ontario Sunday night?
Cloudy skies are expected over most regions, except for partly clearing skies over northern and western regions of southern Ontario (such as near Georgian Bay and southwestern Ontario) due to lots of mid-level moisture (illustrated below for late evening) remaining over most of southern Ontario during the evening and gradually diminishing during the morning.

Will skies be clear over southern Ontario Saturday night?
Mostly clear skies are likely, except for some mid-level clouds that are likely to appear over most regions during some of the night, due to some mid-level moisture which is forecast to be over southern Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Friday night?

Mostly clear skies are expected over southwestern regions, and partly or mostly cloudy skies are expected elsewhere during the evening, followed by partly clearing skies later in the night, as mid-level moisture (illustrated below for after midnight) gradually moves southeastward from southern Ontario.

Will skies be clear over southern Ontario Tuesday night?
Lots of cloudiness will be over most regions, due to both jetstream-level and low-level moisture (illustrated below for late evening) but periods of partly or mostly clear sky are also likely during the evening, before fog develops later in the night in many regions.

Will skies be clear over southern Ontario Saturday night?

Clear skies are likely except for high thin cloud that may be visible in the bright moonlight over most regions, due to jetstream-level moisture over southern Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Friday night?
Mostly cloudy skies are expected, due to lots of low-level cloudiness remaining after this afternoon's cold front, but occasional periods of mostly clear sky are possible over most regions, especially over southwestern regions during early morning.

Will skies be clear over southern Ontario Thursday night?
Partly clear skies are likely with lots of mid-level clouds occasionally over most regions.

Will skies be clear over southern Ontario Wednesday night?
Clear skies are expected, except for some high clouds that may appear occasionally over most regions, due to some jetstream-level moisture which is forecast to move eastward over southern Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Tuesday night?
Clear skies are likely over most regions, except for far southwestern regions where some jetstream-level moisture (illustrated below for late evening) may cause some high clouds to be visible (especially in the bright moonlight).

Will skies be clear over southern Ontario Monday night?
Mostly clear skies are expected, due to a high pressure ridge over Ontario (illustrated below) causing subsidence and a light northerly flow of dry air over southern Ontario, except for some low-level cloudiness that may be over some regions during early evening, especially near western Lake Ontario, caused by some low-level moisture (illustrated below for late evening) that is expected to move eastward from southern Ontario during the evening.