Will skies be clear over southern Ontario Friday night?
Skies might be partly or mostly clear during the early evening, but increasing cloudiness later in the evening is expected. Even if skies remain partly clear during the evening, starlight will be diminished noticeably by a thick plume of smoke from western wildfires which is over southern Ontario during Friday.

Will skies be clear over southern Ontario Thursday night?
Cloudy skies are expected during the evening, and then clearing skies are expected around or after midnight following a cold front. Mid-level moisture over southern Ontario during the evening is forecast to move south of the province after midnight (illustrated below for early Friday) and some low clouds (due to low-level moisture) are likely to remain visible during early morning.

Will skies be clear over southern Ontario Wednesday night?
Partly or mostly clear skies are likely to develop around sunset over many regions of southern Ontario, except for some clouds due to lots of moisture remaining overnight at low, middle and jetstream levels. Heavy dew and fog are also likely to develop due to the high humidity.

Will skies be clear over southern Ontario Sunday night?
Partly cloudy skies are expected over most regions during the evening until cloudiness that is over southern Ontario during the afternoon moves eastward, and then clear skies are likely over most regions by late evening.

Will skies be clear over southern Ontario Saturday night?

Partly cloudy skies are expected during the evening, due to moisture and clouds remaining from afternoon thunderstorms over some regions, and then mostly clear skies are likely by late evening, except for some low clouds which are likely to develop before sunrise.

Will skies be clear over southern Ontario Thursday night?
Mostly clear skies are expected, except for some clouds that may remain for several hours following thunderstorms which may develop over some regions during the afternoon or early evening over some regions.

Will skies be clear over southern Ontario Tuesday night?

Skies are likely to be mostly clear, except for some high cloudiness that is likely to be visible over most regions overnight, caused by jetstream-level moisture as well as other layers of high-level moisture which are forecast to move eastward over southern Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Monday night?
Mostly cloudy skies are likely during early and mid-evening, followed by mostly clear skies after late evening. Early evening cloudiness is expected to be caused by a region of mid-level moisture moving southward over southern Ontario (illustrated below for the hour before sunset) which is forecast to move south of southern Ontario by late evening as well as some high clouds that may be visible, caused by a region of jetstream-level moisture over southern Ontario during the evening (illustrated below for late evening).

Will skies be clear over southern Ontario Friday night?

Mostly clear skies are likely over most regions, except for mostly cloudy skies over southwestern regions due to mid-level moisture which is forecast to be over southwestern Ontario overnight (illustrated below for late evening) and except for some low clouds during the evening and some high clouds over most other regions until about midnight.

Will skies be clear over southern Ontario Wednesday night?

Mostly or partly cloudy skies are expected during the evening over most regions, due to lots of low and mid-level moisture remaining over and moving southward from southern Ontario during the evening following this afternoon’s cold front, and then mostly clear skies are likely after midnight. Fog and low cloud may develop over many regions after skies become clear and before morning in locations where winds diminish.

Will skies be clear over southern Ontario Tuesday night?

Mostly clear skies are likely, except for some cloudiness during the evening over regions near and north of lake Ontario, caused by some low and mid-level moisture which is gradually moving eastward from southern Ontario during Tuesday (illustrated below for late evening) and except for increasing cloudiness after midnight over most regions, caused by increasing mid-level moisture which is forecast to move southward over southern Ontario early Wednesday (illustrated below for early Wednesday).

Will skies be clear over southern Ontario Friday night?

Mostly clear skies are expected, except for some low clouds during the evening over regions near and north of Lake Ontario, caused by low-level moisture remaining after Friday’s cold frontal passage (illustrated below for early evening).

Will skies be clear over southern Ontario Tuesday night?

Lots of scattered high cloudiness is likely to be visible over many regions, caused by high and mid-level moisture which is forecast to be over most of southern Ontario overnight (illustrated below for late evening); otherwise, generally clear skies are expected.

Will skies be clear over southern Ontario Sunday night?

Mostly clear skies are expected, except for some low clouds that may appear over some regions during the evening, caused by regions of low-level moisture which are forecast to be over southern Ontario during the evening (illustrated below for late evening).

Mostly clear skies are likely, except for some low clouds during early evening, and except for fog which is likely to develop by late evening over many regions. Some high cloudiness is also likely to be over southern regions (near Lakes Erie and Ontario) but may not be visible due the high humidity and fog developing.