Monday, 13 January 2020


Will skies be clear over southern Ontario Monday night?
Mostly cloudy skies are likely over most regions, due to lots of low-level moisture over some regions (illustrated below for late evening), but skies could become partly or mostly clear over some regions especially during the early evening before mist or fog develops later in the evening.




Wednesday, 8 January 2020


Will skies be clear over southern Ontario Wednesday night?
Mostly clear skies are expected during the evening, except for some cloudiness over regions south and east of Lake Huron and Georgian Bay caused by low-level moisture (illustrated below for early evening) and then increasing high and mid-level cloudiness is expected later in the night beginning over southwestern regions.




Monday, 6 January 2020


Will skies be clear over southern Ontario Monday night?
Mostly clear skies are expected over southwestern regions during the evening, until mid-level cloud begins to move eastward over these regions later in the night, while mostly cloudy skies are expected over regions near, north and northwest of Lake Ontario due to low-level moisture (illustrated below for early evening) causing low cloud during the early evening.



Friday, 27 December 2019

Will skies be clear over southern Ontario Friday night?
Partly or mostly clear skies are likely over southwestern regions, following some cloudiness during the evening, while mostly cloudy skies are expected over most other regions, caused by widespread low-level moisture, except that skies could occasionally become partly or mostly clear over regions where gaps develop in the moisture, especially before morning.

Tuesday, 24 December 2019


Will skies be clear over southern Ontario Tuesday night?

Mostly cloudy skies are expected, mainly due to widespread jetstream-level moisture over southern Ontario overnight (illustrated below for late evening) as well as some low-level moisture over some regions, except that partly clear skies may develop over some southwestern regions where gaps in the high cloud could allow skies to occasionally become partly or mostly clear.




Monday, 23 December 2019


Will skies be clear over southern Ontario Monday night?

Mostly cloudy skies are expected during the evening, due to lots of low-level moisture (illustrated below for early evening) as well as lots of jetstream-level moisture causing high cloud overnight, followed by clearing skies later in the evening (except for the widespread high cloud remaining over most regions overnight).




Sunday, 22 December 2019

Will skies be clear over southern Ontario Sunday night?
Clear skies are expected, except for some thin high cloud that may appear later in the evening and after midnight over some regions, caused by jetstream-level moisture which is forecast to move across southern Ontario overnight (illustrated below for late evening).