Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Winter Road Conditions
US 20 Whole Road 8 reports
Parma to Boise 2 reports
Mountain Home to Arco 2 reports
Arco to Idaho Falls 2 reports
Idaho Falls to Montana 3 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 15th Street (Boise). Expect dry pavements. Cloudy skies. Between I-84; ID 51 (Mountain Home) and Cat Creek Summit (26 miles west of the Fairfield area). Expect dry pavements. Cloudy skies. 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 Van Buren Boulevard (12 miles east of the Butte City area). Expect dry pavements. Cloudy skies. Between ID 33 (12 miles east of the Butte City area) and I-15; US 91 (Idaho Falls). The road is wet. Cloudy skies. Be prepared for light snow. Between I-15 (Idaho Falls) and Thornton Road (2 miles west of the Rexburg area). The road is wet. Be prepared for light snow. Between Thornton Road (2 miles west of the Rexburg area) and Harriman State Park (2 miles west of the Island Park area). The road is wet. Cloudy skies. 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). Expect dry pavements. Cloudy skies.
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