Parts of the Prairies saw temperatures climb well above seasonal values on Tuesday.
Places like Edmonton and Lloydminster, Alberta even set new records for the daily daytime high.
The warm-up for several places however, was short lived as temperatures dipped once again Wednesday morning.
Officials say the dramatic temperature swing has led to treacherous driving conditions especially in southern Saskatchewan and Manitoba.
RCMP are advising against travel on the Trans-Canada Highway in the Indian Head area because of snow, black ice and reduced visibility. Road conditions north and east of Regina are in poor shape as well and several accidents were reported through the morning rush.
Snow and ice covered highways in Manitoba also have officials urging drivers to be careful. A school bus was involved in a multi-vehicle crash Wednesday morning, sending one person from another vehicle to hospital, police said.
With temperatures expected to get colder over the next few days, road conditions are expected to remain slick.
Motorists are being asked to adjust their driving habits accordingly and to slow down as conditions deteriorate.
With files from The Canadian Press