Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
US 20: Idaho Falls to Montana
US 20 in both directions: Dry pavement, cloudy.
Between I-15 (Idaho Falls) and The South Ashton City Limits (6 miles west of the Ashton area). Expect dry pavements. Cloudy skies.
Last updated yesterday at 1:22pm MST
US 20 in both directions: Snow on roadway, snow, drifting snow, reduced visibility.
Between The South Ashton City Limits (6 miles west of the Ashton area) and Harriman State Park (2 miles west of the Island Park area). Look out for snow on the roadway. Be prepared for snow. Look out for drifting snow on the roadway. Visibility is reduced.
Last updated today at 2:05am MST
US 20 in both directions: Packed snow patches, wet pavement, light snow, high winds, drifting snow, reduced visibility.
Between Harriman State Park (2 miles west of the Island Park area) and The Montana State Line (3 miles east of the Island Park area). Look out for packed snow patches on the roadway. The road is wet. Be prepared for light snow. Look out for high winds. Look out for drifting snow on the roadway. Visibility is reduced.
Last updated today at 12:48am MST
Switch to Road Reports
Switch to Truck Restrictions
Reports on US 20: Idaho Falls to Montana
Map of Reports on US 20 Between I-15 (Idaho Falls) and The South Ashton City Limits (6 miles west of the Ashton area). Expect dry pavements. Cloudy skies. Between The South Ashton City Limits (6 miles west of the Ashton area) and Harriman State Park (2 miles west of the Island Park area). Look out for snow on the roadway. Be prepared for snow. Look out for drifting snow on the roadway. Visibility is reduced. Between Harriman State Park (2 miles west of the Island Park area) and The Montana State Line (3 miles east of the Island Park area). Look out for packed snow patches on the roadway. The road is wet. Be prepared for light snow. Look out for high winds. Look out for drifting snow on the roadway. Visibility is reduced.
Google Static Map Image
State conditions legend State
Closure Closure
Public conditions legend Public
Weather warning legend Weather Warning