Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Winter Road Conditions
US 20 Whole Road 12 reports
Parma to Boise 2 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). Expect dry pavements. Cloudy skies. Between I-84 (Caldwell) and I-184 (Boise). Expect dry pavements. Cloudy skies. Between I-84; ID 51 (Mountain Home) and Cat Creek Summit (26 miles west of the Fairfield area). Look out for slush on the roadway. The road is wet. Be prepared for light snow. Look out for large animals on the roadway. There is danger of a rock fall. Between Cat Creek Summit (26 miles west of the Fairfield area) and ID 75 (16 miles west of the Carey area). The road is wet. Cloudy skies. Look out for drifting snow on the roadway. Between ID 75 (16 miles west of the Carey area) and US 26 (Carey). Look out for slush on the roadway. Look out for icy patches. The road is wet. Cloudy skies. Look out for drifting snow on the roadway. Between US 26 and Blizzard Mountain Road (15 miles east of the Carey area). 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 slush on the roadway. The road is wet. Be prepared for light snow. Be prepared for gusty winds. Between Van Buren Boulevard (13 miles east of the Butte City area) and I-15; US 91 (Idaho Falls). The road is wet. Be prepared for gusty winds. Look out for drifting snow on the roadway. Between I-15 (Idaho Falls) and Burton Road (2 miles west of the Rexburg area). The road is wet. 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. 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). The road is wet. Be prepared for light snow. 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 slush on the roadway. The road is wet. Be prepared for light snow.
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