I know I'm being a jerk, but Marion is at the south end of Little Bitterroot Lake, and the Boorman RAWS weather station is at the north end. Over the past 5 days they've had .40" of precipitation. The temperature has been between 8 and 27 degrees. According to data tables, at those temps 4/10" of precipitation would equal between 6" and 12" of snow.
Just sayin'........
I haven't looked at any numbers for Marion, but based on the amount of snow that is on the ground at our place that sounds about right for Marion.