Sioux Falls, SD – Light to moderate snow is expected across eastern South Dakota, southwest Minnesota, and northwest Iowa on Saturday, followed by dangerously cold wind chills overnight into Sunday morning, according to the National Weather Service in Sioux Falls.
Snow will begin in central South Dakota early Saturday and spread southeast through the day. Accumulations will vary widely, with 1–3 inches west of the James River and 3–6 inches east of I-29, including the Sioux Falls area. Forecasters say localized pockets south of I-90 in southwest Minnesota and northwest Iowa could see over 6 inches.
Snowfall rates may reach 1 to 1.5 inches per hour in stronger bands Saturday afternoon and evening, leading to quick accumulation and minor to moderate travel impacts. Gusty easterly winds of 20–25 mph could briefly reduce visibility and cause light drifting on rural roads.
Once the snow tapers off Saturday night, temperatures will plunge sharply. The NWS warns of wind chills from -5°F to -15°F for most areas, with spots along the Buffalo Ridge possibly reaching -20°F early Sunday. Frostbite can occur in as little as 30 minutes, and residents are urged to bundle up and limit time outdoors.
Highs Sunday will only reach the single digits and teens, with cold conditions continuing into early next week.
