The Great Plains and Midwest, struggling with flooding that inundated roads and farms and pushed rivers to record heights, is set to get more rain ahead, with light showers forecast over the next few days and a heavier downpour next week.

BISMARCK, N.D. — Heavy rain falling atop deeply frozen ground has prompted evacuations along swollen rivers in Wisconsin, Nebraska and other Midwestern states, while powerful wind and snow has closed hundreds of miles of interstates in North Dakota.