Freeze Warning remains in effect from 1am  midnight to 8 AM SATURDAY. From the National Weather Service in Bismarck. Sub-freezing temperatures from 27 to 32 degrees expected. Most of western and central North Dakota. From 1 AM CDT Midnight MDT to 9 AM CDT 8 AM MDT Saturday. Frost and freeze conditions could kill sensitive vegetation left outdoors. Sub-freezing temperatures will be possible again late Saturday night until mid morning Sunday. Take steps now to protect tender plants from the cold.