Icy road conditions have already caused problems for drivers.
The Moose Jaw Police Service are currently dealing with a three semi collision on Highway 1 between Thatcher Drive East and Main St. N in the westbound lane.
The public should avoid this area. The police say it will take some time to get the highway back into safe condition.
The MJPS are asking the public to be aware of highway and street conditions as the weather deteriorates. You should travel only when necessary.