Will skies be clear over southern Ontario Saturday night?
Clear skies are likely to continue over most regions until high-level cloudiness starts to move eastward over southern Ontario later in the evening.
The images below illustrate the high moisture that is forecast to move over southern Ontario ahead of a low pressure trough which is expected to move over the central Great Lakes region by Sunday morning. Meanwhile, south of Georgian Bay and Lake Huron, more extensive lake-effect cloudiness is likely to cause low-level cloudiness during most of the night.