Sioux Falls, South Dakota – Snow-covered roads could begin impacting travel as early as Wednesday morning, with accumulating snowfall expected to expand across much of eastern South Dakota through Thursday.
According to the National Weather Service in Sioux Falls, confidence is increasing that most areas will see measurable snowfall, with the highest totals expected north of I-90 and west of the James River Valley. Snow is expected to develop early Wednesday and continue in waves through Thursday, increasing the risk for slick roads and reduced visibility.
Communities including Brookings, Huron, Mitchell, and Watertown are positioned in a higher-impact zone where snowfall rates could briefly intensify, especially during the daytime hours Wednesday into early Thursday. Travel along I-29 and I-90 may become hazardous, particularly during peak commute times when snow begins to stick to road surfaces.
While exact totals remain uncertain, trends show increasing snowfall potential across the region. Residents should prepare for winter driving conditions, allow extra travel time, and monitor road updates from SD DOT.
The system continues into Thursday before tapering off, with additional updates likely as snowfall amounts and timing become more certain.


