The National Weather Service says that Sioux Falls got an inch of new snow this morning. There is a chance of snow tonight and again on Wednesday.

From The NWS:

"Snow is likely to spread across the area on Wednesday and continue into Wednesday night.  Currently, the largest accumulations of snow looks to be across eastern Nebraska and into Iowa Wednesday afternoon and evening.  Lesser amounts of snow are possible near Interstate 90 in southeast South Dakota and southwest Minnesota."