Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Winter Road Conditions
US 20 Whole Road 13 reports
Parma to Boise 3 reports
Mountain Home to Arco 5 reports
Arco to Idaho Falls 2 reports
Idaho Falls to Montana 4 reports
Reports on US 20
Map of Reports on US 20 Between US 95 (near Parma) and I-84 (near Caldwell). Look out for icy patches. Cloudy skies. Between I-84 (Caldwell) and ID 16 (3 miles west of the Eagle area). Look out for icy patches. Cloudy skies. Between ID 16 (3 miles west of the Eagle area) and I-184 (Boise). Look out for icy patches. The road is wet. Weather conditions clear. Between I-84; ID 51 (Mountain Home) and Cat Creek Summit (26 miles west of the Fairfield area). Look out for icy patches. Look out for packed snow patches on the roadway. Cloudy skies. Look out for high winds. Look out for large animals on the roadway. Look out for drifting snow on the roadway. Visibility is reduced. Between Cat Creek Summit (26 miles west of the Fairfield area) and First Street West (Fairfield). Look out for icy patches. The road is wet. Be prepared for light snow. Look out for drifting snow on the roadway. Visibility is reduced. Between First Street West (Fairfield) and ID 46 (16 miles west of the Carey area). Look out for icy patches. Cloudy skies. Be prepared for gusty winds. Look out for drifting snow on the roadway. Between The Timmerman Rest Area (16 miles west of the Carey area) and Blizzard Mountain Road (15 miles east of the Carey area). Look out for icy patches. The road is wet. Cloudy skies. Between Lava Lake Road (15 miles east of the Carey area) and Van Buren Boulevard (13 miles east of the Butte City area). Look out for icy patches. The road is wet. Cloudy skies. Look out for drifting snow on the roadway. Between Van Buren Boulevard (13 miles east of the Butte City area) and I-15; US 91 (Idaho Falls). The road is wet. Cloudy skies. Between I-15 (Idaho Falls) and Burton Road (2 miles west of the Rexburg area). Expect dry pavements. Cloudy skies. Be prepared for light snow. Between 4300 West Road (2 miles west of the Rexburg area) and The South Ashton City Limits (6 miles west of the Ashton area). The road is wet. Be prepared for snow. Be prepared for gusty winds. 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. Snow chains are recommended. 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 snow on the roadway. Be prepared for snow. Look out for drifting snow on the roadway.
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