Will skies be clear over southern Ontario Saturday night?
Most regions are likely to be cloudy by sunset. Partly clear skies are likely over eastern regions of southern Ontario during early evening, except for high thin cloudiness, and then cloudy skies are expected by late evening due to moisture spreading northeastward over southern Ontario ahead of a low pressure trough moving over the southern Great Lakes region.
The illustrations below show the extent of high-level and mid-level moisture during late evening.