Environment Canada has issued a Special Weather Statement for southeast Saskatchewan.
A low pressure system is forecast to develop over eastern Montana late Thursday afternoon with a frontal boundary positioned to the northeast across northern North Dakota into southeast Manitoba.
Rain, possibly heavy at times along with the risk of thunderstorms is expected to develop tonight along and to the north of this frontal boundary.
This system will be slow moving and this will set the stage for a potentially significant precipitation event to occur.
The weather office says rainfall totals will range from 25 to 75 millimeters by the time the system moves out of the region Saturday evening.
Cold air will also work its way into the region Friday afternoon possibly changing rain over to snow.
If the changeover to snow occurs, areas between the Redvers, Saskatchewan region northeast towards the northern Bissett region could see up to 10 centimeters of snow in addition to the rain by Saturday evening.