US-12 between Junction Interstate 90 at Garrison and Helena including MacDonald Pass

Road Conditions:

Road conditions as of 5:45 PM MST on Saturday, January 19 are as follows: wet with the following exceptions - scattered snow and ice between 4 miles west and 7 miles east of MacDonald Pass and dry between 6 miles west of Junction Interstate 15 and US 287 South-Helena and Junction Interstate 15 and US 287 South-Helena. Actual road conditions may vary from this report. Motorists are cautioned to be alert to changing conditions.


The forecast until 12:00 AM MST on Sunday, January 20: Skies will be mostly cloudy becoming partly clear. Visibility will be two miles changing to ten miles. There will be occasional light snow changing to widely scattered very light snow. Winds will be 6 mph from the west. Temperatures will range from 28 to 40 F changing to 14 to 34 F.