A pulse of moisture combined with rapidly falling temperatures resulted in light snow and freezing drizzle on Friday.
Accumulations were fairly light -- most locations saw only flurries or around two or three centimetres, but Burlington reported up to six centimetres. The city of Hamilton recorded between four and five centimetres -- beating the record of 3.8 cm set in 1966.
The Ministry of Transportation was forced to close the eastbound lane of Highway 401 in Cambridge for about two hours on Friday due to the conditions.
As the system moved east is brought black ice to areas west of Toronto. According to Peel Police, 25 collisions were reported in the region.
By Saturday, temperatures had warmed, turning the snow into slush.
Treated roads are still be wet, and untreated roads and ramps could be slippery. Motorists are urged to adjust their driving habits accordingly.
Weather Network meteorologist Brian Dillon said after that, some relief is on the way.
"Temperatures will start to warm up. We could be seeing a double-digit daily high by Monday," he said.
However, with the warmer temperatures may come some showers, with up to 15 mm of rainfall across much of the south by Sunday.
Visit the Alerts section of the website to keep on top of watches and warnings across the country.
With files from the Canadian Press