Floodwaters are beginning to recede in southeast Saskatchewan, but people might want to leave the sandbags up for a while, officials say.

Hundreds of people around Estevan and Weyburn had to temporarily leave their homes in recent weeks as swollen rivers and creeks flooded houses and streets.

Flows on the Souris River, which reached unprecedented levels following the release of water from dams, are starting to lessen, but officials say people need to remain on guard.

"We are encouraging people not to be too anxious to take their works down ... in the event that we have another rain event of some sort over the next few days," said Duane McKay, the province's commissioner of emergency management.

Some communities, including the village of Roche Percee in the extreme southeast, remain underwater, with dozens of homes ruined.   Meanwhile, further northeast, most of the lakes along the Qu'appelle chain reached their second peak on the weekend.

Some lakes, including Crooked and Last Mountain, were at higher levels than at the height of the spring melt.

With the water so high, heavy wind could once again cause serious problems, so people should leave up their berms and sandbags,  McKay said.