Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Winter Road Conditions
US 20 Whole Road 8 reports
Parma to Boise 3 reports
Mountain Home to Arco 2 reports
Arco to Idaho Falls 1 report
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 Franklin Road (3 miles west of the Star area). Expect dry pavements. Cloudy skies. Between Franklin Road (3 miles west of the Star area) and 15th Street (Boise). The road is wet. 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. Between Cat Creek Summit (26 miles west of the Fairfield area) and I-15; US 91 (Idaho Falls). Expect dry pavements. Cloudy skies. 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). 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). The road is wet. Cloudy skies.
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