Scattered showers and thunderstorms are expected to develop again this evening along the Missouri River later this evening and continue into the overnight hours. Additional showers and thunderstorms will lift northward out of Nebraska into central and eastern South Dakota during the day Saturday. A slow moving frontal boundary will provide additional chances during the day Sunday with some heavier rainfall possible on Sunday. There could be some lingering showers along and east of the I-29 corridor Monday morning before the area dries out.