Weather conditions are expected to change dramatically over the weekend according Environment Canada. (Environment Canada )

Environment Canada has issued a special weather statement for the southern part of Saskatchewan, advising of poor visibility, blowing snow and a big drop in temperature this weekend. 

The federal weather organization's website says a strong Arctic cold front will bring the change overnight into Sunday as it pushes across the province. 

Temperatures are expected to fall by 20 to 25 degrees from Saturday's highs near zero. 

About two to five centimetres of snow are expected Saturday in southeastern areas as an Alberta clipper system tracks into the United States. 

The alert continues to explain that blizzard conditions are also on the way, as some snowfall is expected along with strong winds gusting to 70 km/h or 80 km/h. 

Environment Canada says highway driving will become treacherous overnight into Sunday morning, especially on the Trans-Canada Highway. 

Visibility is expected to improve Sunday, however, afternoon temperatures are predicted to fall dramatically. 

People are being reminded to check the weather before traveling, as well as road conditions on the provincial Highway Hotline website.