Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
Winter Road Conditions
US 20 Whole Road 15 reports
Parma to Boise 3 reports
Mountain Home to Arco 7 reports
Arco to Idaho Falls 3 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). Look out for icy patches. The road is wet. Look out for freezing rain. Between I-84 (Caldwell) and ID 16 (3 miles west of the Eagle area). Look out for icy patches. The road is wet. Look out for freezing rain. Between ID 16 (3 miles west of the Eagle area) and I-184 (Boise). Look out for slush on the roadway. The road is wet. Expect rain. 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. Look out for a mix of rain and snow. Between Cat Creek Summit (26 miles west of the Fairfield area) and ID 46 (16 miles west of the Carey area). Look out for snow on the roadway. Be prepared for snow. Between The Timmerman Rest Area (16 miles west of the Carey area) and US 26 (Carey). The road is wet. Expect rain. Between US 26 and Blizzard Mountain Road (15 miles east of the Carey area). Look out for snow on the roadway. Be prepared for snow. Between Lava Lake Road (15 miles east of the Carey area) and Van Buren Boulevard (13 miles east of the Butte City area). The road is wet. Cloudy skies. 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 light snow. Between I-15 (Idaho Falls) and Burton Road (2 miles west of the Rexburg area). The road is wet. Cloudy skies. Between 4300 West 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. Look out for icy patches. Be prepared for light snow. Between The South Ashton City Limits (6 miles west of the Ashton 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. Between County Line Road; 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 Blizzard Mountain Road (13 miles west of the Arco area) and The Truck Scale Port of Entry (near Butte City). A Winter Storm Warning is in effect. Until today at about 5:00PM MST. Between Blizzard Mountain Road (13 miles west of the Arco area) and The Truck Scale Port of Entry (near Butte City). 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 5:00PM MST.
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