Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Winter Road Conditions
US 20 Whole Road 17 reports
Parma to Boise 3 reports
Mountain Home to Arco 8 reports
Arco to Idaho Falls 2 reports
Idaho Falls to Montana 5 reports
Reports on US 20
Map of Reports on US 20 Between US 95 (near Parma) and I-84 (near Caldwell). The road is wet. Expect rain. Between I-84 (Caldwell) and Franklin Road (3 miles west of the Star area). The road is wet. Expect rain. 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). The road is wet. Expect rain. Between Cat Creek Summit (26 miles west of the Fairfield area) and First Street West (Fairfield). The road is wet. Cloudy skies. Between First Street West (Fairfield) and ID 75 (17 miles west of the Carey area). Look out for snow on the roadway. Be prepared for snow. Between ID 75 (17 miles west of the Carey area) and US 26 (Carey). The road is wet. Look out for a mix of rain and snow. Between US 26 (Carey) and Blizzard Mountain Road (18 miles west of the Arco area). Look out for snow on the roadway. Be prepared for snow. Between Lava Lake Road (18 miles west of the Arco area) and Van Buren Boulevard (12 miles east of the Butte City area). Look out for slush on the roadway. Look out for a mix of rain and snow. Between ID 33 (12 miles east of the Butte City area) and I-15; US 91 (Idaho Falls). Look out for icy patches. The road is wet. Cloudy skies. Look out for a mix of rain and snow. Between I-15 (Idaho Falls) and Thornton Road (2 miles west of the Rexburg area). The road is wet. Cloudy skies. Expect rain. Between Thornton Road (2 miles west of the Rexburg area) and The South Ashton City Limits (6 miles west of the Ashton area). Look out for snow on the roadway. Be prepared for snow. 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 light snow. Be ready for patchy fog. 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. Look out for icy patches. Be prepared for snow. Look out for drifting snow on the roadway. Visibility is reduced. Between Camp Creek Road (12 miles east of the Fairfield area) and Cutoff Road (5 miles west of the Carey area). A Winter Storm Warning is in effect. Until today at about 5:00PM MST. Between The North Fork Teton River Bridge (near Sugar City) and The Montana State Line (3 miles east of the Island Park area). A Winter Storm Warning is in effect. Until today at about 11:00PM MST.
US 20: Road blocked, consider using an alternate route, delays.
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