Environment Canada has freezing drizzle and fog advisories out Monday morning, a day after icy roads caused mayhem on highways around Estevan.
"A rich layer of near-surface moisture combined with a stationary frontal boundary and temperatures between -5 and -10 are providing conditions favourable for freezing drizzle," said the advisory.
This can cause "thin, hard-to-detect layers of ice" that make driving and walking difficult.
The freezing drizzle should taper off later this morning.
Dense fog, causing near-zero visibility, is expected to continue and redevelop throughout the morning.
"Travel is expected to be hazardous due to reduced visibility in some locations," said advisory. "If travelling, be prepared for areas of near-zero visibility. If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop."
The fog is expected to lift gradually throughout the day.
Estevan Police Service Sgt. Evan Handley said driving conditions are bad again on Monday.
"We ask the public to give themselves some extra time, and if you don't have to travel, don't."
The province's Highway Hotline has highways across the southeast listed as being in winter-driving condition. It says there are icy and slippery sections, with wet areas that are subject to freezing, and reports reduced visibility in some areas.
The scenes of two collisions that were marked on the Highway Hotline Sunday have cleared.