National Weather Service United States Department of Commerce

Snow is expected to develop over central South Dakota Saturday morning and progress southeastward through the day. Light to moderate snowfall is expected, with the highest totals expected east of I-29.
Accumulating snow is expected for Saturday. Your location will have a big impact on how much snow you receive. Areas of central South Dakota will have the lowest totals between 1-3 inches. West of the James River can expect 3-6 inches with locally higher amounts possible in southwestern Minnesota and northwestern Iowa.
Cold air settles in behind the snow Saturday night. Wind chills will fall to the -5 to -15 range. At elevation and along the Buffalo Ridge wind chills may fall as low as -20. Please ensure you are dressed for cold weather.