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Winter Road Conditions
US 20 Whole Road 9 reports
Parma to Boise 3 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. Be ready for patchy fog. Between I-84 (Caldwell) and Franklin Road (3 miles west of the Star area). Expect dry pavements. Be ready for patchy fog. Between Franklin Road (3 miles west of the Star area) 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. 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). Expect dry pavements. Weather conditions clear. Between I-15 (Idaho Falls) and The South Ashton City Limits (6 miles west of the Ashton area). Expect dry pavements. Weather conditions clear. 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). Expect dry pavements. 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). The road is wet. Cloudy skies.
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