Will skies be clear over southern Ontario Wednesday night?

Mostly clear skies are likely until early morning, and then high clouds are likely to appear over most regions as increasing jetstream-level moisture (illustrated below for early Thursday) moves eastward over southern Ontario ahead of Thursday night’s low pressure trough.

Will skies be clear over southern Ontario Tuesday night?
Skies will likely be partly clear over regions near western Lake Ontario during the first couple of hours after sunset, and then become cloudy during early evening, followed by partly clearing skies after midnight. Further west, over southwestern regions, cloudy skies during the evening are likely to begin clearing around midnight. The illustration below shows the low-level moisture forecast during early evening.

Will skies be clear over southern Ontario Monday night?

Skies are likely to be partly cloudy, due to lots of high-level moisture (illustrated below for early evening) causing scattered high cloud that should be easily visible in the bright moonlight before midnight, while the brighter stars may give the appearance of mostly clear skies during the periods with less clouds.

Will skies be clear over southern Ontario Thursday night?

Clearing skies are likely after sunset, except for lots of low-level clouds over regions south and east of Lake Huron and Georgian Bay, and except for some mid- and high-level cloud that may occasionally appear overnight, due to the presence of some moisture at all levels in the atmosphere over southern Ontario overnight.

Will skies be clear over southern Ontario Wednesday night?

Skies are likely to be partly clear with some low clouds during the early evening over most regions, except for more cloudiness over regions south and east of Lake Huron and Georgian Bay. Then, increasing mid-level cloudiness is expected by mid or late evening, due to increasing mid-level moisture which is forecast to move eastward over southern Ontario overnight (illustrated below for mid-evening) ahead of Thursday’s low pressure trough.

Will skies be clear over southern Ontario Tuesday night?

Cloudy skies are expected during the evening, and then mostly cloudy skies are expected following Tuesday night’s cold front, except for gradually increasing clear breaks in the low cloud that will likely provide some clear breaks before morning over most regions.

Will skies be clear over southern Ontario Monday night?
Mostly clear skies are likely, except for high cloud which is likely to appear over most regions due to jetstream-level moisture which is forecast to move over southern Ontario overnight (illustrated below for mid-evening) as well as some low-level clouds which may appear over some locations especially during early evening.

Will skies be clear over southern Ontario Sunday night?
Skies are likely to be mostly cloudy, due to widespread low-level moisture (illustrated below for mid-evening) causing low clouds, but breaks in the cloud are likely and so some periods of partly or mostly clear sky are likely to appear occasionally over most regions.

Will skies be clear over southern Ontario Thursday night?

Mostly cloudy skies are likely before midnight over most regions, especially south of Lake Huron and Georgian Bay, due to low-level moisture (illustrated below for mid-evening) and then gradually clearing skies are likely during the early morning.

Will skies be clear over southern Ontario Tuesday night?
Mostly cloudy skies are likely most of the time over most regions, due to lots of low-level moisture which is forecast to be over southern Ontario (illustrated below for mid-evening) but breaks in the cloud may appear from time to time overnight and allow skies to become partly or mostly clear over various regions.

Will skies be clear over southern Ontario Friday night?

Clear skies are likely over most regions during the evening, except for some scatted low clouds caused by low-level moisture especially south of Georgian Bay and Lake Huron (illustrated below for early evening), and then increasing mid-level cloudiness is expected after midnight due to mid-level moisture which is forecast to move eastward over southern Ontario (illustrated below for early Saturday).

Will skies be clear over southern Ontario Wednesday night?

Mostly clear skies are expected over most regions, except for some low clouds that may appear, especially over regions east of Lake Huron, due to low-level moisture (illustrated below for mid-evening).

Will skies be clear over southern Ontario Tuesday night?
Partly clear and partly cloudy skies are expected, due to clearing ahead of a large high pressure ridge west of the Great Lakes, but partly cloudy due to lots of low-level moisture over southern Ontario (illustrated below for early evening) especially south and east of Lake Huron and Georgian Bay.

Will skies be clear over southern Ontario Monday night?

Lots of cloudiness is likely, due to lots of moisture which is forecast to move across southern Ontario (illustrated below for mid-level moisture during early evening), but many breaks in the cloudiness are likely to result in skies occasionally appearing to be clear enough for the bright moonlight to be visible and to give the impression of clear skies.

Will skies be clear over southern Ontario Friday night?
Mostly clear skies are likely during early evening, except for some high jetstream-level cloud over southwestern regions, followed by increasing high cloudiness by late evening due to increasing high-level moisture which is forecast to move over southern Ontario overnight (illustrated below for late evening), and then lower clouds are expected after midnight.