5:30 am Saturday, March 2nd: Meteorologist Brant Beckman KNBN has your update. 3° with blowing snow in Rapid City. -35 to -50 wind chills possible over the next 36 hours for Northwestern South Dakota as temperatures continue to plummet to -10° and -15°. Snow will continue through the morning hours, 2-4” expected in Rapid City. #sdwx | NewsCenter1 Media Group