Will skies be clear over southern Ontario Tuesday night?
Partly clear skies are expected during the evening, and skies will most likely be mostly clear by morning.
The frontal zone moving southward from southern Ontario during Tuesday afternoon will likely have lots of high, mid and low-level moisture remaining over southern Ontario during the evening and the moisture (illustrated below for high-level and low-levels during Tuesday late evening) is forecast to gradually move southward from southern Ontario overnight.