Environment Canada says more snow today will be followed by a sharp drop in temperatures early this evening.
Periods of snow will continue today. Snowfall amounts won't be significant, partly due to melting and settling of the wet snow as temperatures nudge above the freezing mark. Additional amounts up to 5 centimetres are likely before tapering off this evening.
In addition, a sharp Arctic cold front is forecast to sweep across the region early this evening. A sudden drop in temperature from near the freezing mark may make wet or snow-covered roads rather icy Sunday evening.
Motorists should allow a little extra time to reach their destination, with particular heed to slippery road conditions this evening.
The snow affecting Southern Ontario this weekend is courtesy of a low pressure centre currently over Michigan. It will track across Georgian Bay this morning and into southern Quebec by this evening. Although it is a relatively weak system, it has absorbed additional moisture from the Great Lakes to produce a general seasonal snowfall across the region.