Motorists and pedestrians were urged to travel with care Wednesday because some roads and sidewalks are covered with patches of ice.
Slippery conditions formed after southern Ontario was hit with a mix of rain and wet snow from a low-pressure system that moved through the region Tuesday, followed by a quick drop in temperatures.
Environment Canada said a sharp Arctic cold front is responsible for colder temperatures, strong winds and a wind chill that dipped to -17.
"Residual moisture and wet snow that has accumulated on untreated surfaces will freeze early (Wednesday) morning and may cause hazardous travelling conditions for the morning commute," Environment Canada warned in a statement.
North of Toronto, Environment Canada issued a special weather statement for a region including Owen Sound, Barrie and Collingwood because of the potential for heavy snow flurries and blowing snow. Up to 10 centimetres of snow is expected.
Meanwhile, vehicles went into the ditch on several highways and roads, including highways 400 and 404, during a tricky Wednesday morning commute.
Because of the icy conditions, police urged motorists to slow down and give themselves extra time to arrive at their destination. City of Toronto crews have been spreading salt on roads and sidewalks to combat ice.
At one point, Highway 11 was shut down between North Bay and Cobalt after vehicles, including tractor-trailers, became stuck in snow and blocked parts of the highway.
Power outages reported
About 8,000 Hydro One customers were in the dark because of the weather conditions. Power outages were reported in Minden, Newmarket, Peterborough, Fenelon Falls, Orangeville, Bolton and Nipissing.
Ontario Provincial Police said traffic lights in the Caledon area weren't working due to a power outage.
Officers were directing traffic at the intersections of Highway 10 and Old Baseline Road, King Street and Mississauga Road and King Street and McLaughlin Road.
As for the forecast, Environment Canada is calling for a chance of flurries Wednesday morning, in addition to wind gusts of up to 60 km/h and a steady temperature of about -8 C in Toronto.
Wind gusts are expected to diminish to 20 km/h by late afternoon.
Toronto will see an overnight low of -10 C.
The temperature is expected to rise in the coming days, although there is a chance of more snow flurries and rain.
Environment Canada is predicting a high of zero degrees Thursday, along with a chance of snow flurries in the morning and up to two centimetres of light snow in the afternoon.
Friday may bring periods of rain and a high of 3 C, followed by highs of 1 C on Saturday and 7 C on Sunday, according to Environment Canada's long-term forecast.
Normal temperatures for this time of year are highs of -1 C and lows of -8 C.
