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Winter Road Conditions
US 20 Whole Road 15 reports
Parma to Boise 3 reports
Mountain Home to Arco 7 reports
Arco to Idaho Falls 2 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). The road is wet. Be prepared for snow. Between I-84 (Caldwell) and ID 16 (3 miles west of the Eagle area). The road is wet. Be prepared for snow. Between ID 16 (3 miles west of the Eagle area) and I-184 (Boise). The road is wet. Look out for slush on the roadway. Be prepared for light snow. 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 First Street West (Fairfield). Look out for snow on the roadway. Be prepared for snow. Between First Street West (Fairfield) and ID 75 (16 miles west of the Carey area). Expect dry pavements. Cloudy skies. Between ID 75 (16 miles west of the Carey area) and US 26 (Carey). Expect dry pavements. Cloudy skies. Between US 26 and Blizzard Mountain Road (15 miles east of the Carey area). Expect dry pavements. Cloudy skies. Between Lava Lake Road (15 miles east of the Carey area) and US 93 (Arco). Expect dry pavements. Cloudy skies. Between US 93 (Arco) and Van Buren Boulevard (13 miles east of the Butte City area). Expect dry pavements. Cloudy skies. Between Van Buren Boulevard (13 miles east of the Butte City area) and I-15; I-15B (Idaho Falls). Expect dry pavements. Cloudy skies. Between I-15 (Idaho Falls) and The South Fork Teton River Bridge (Rexburg). The road is wet. Look out for snow on the roadway. Weather conditions clear. Cloudy skies. Between ID 33 (Rexburg) and The South Ashton City Limits (6 miles west of the Ashton area). Look out for slush on the roadway. Look out for icy patches. Cloudy skies. Between The South Ashton City Limits (6 miles west of the Ashton area) and Box Canyon Campground Road (near Island Park). Look out for snow on the roadway. Be prepared for snow. Between Recreational Access Road and The Montana State Line (3 miles east of the Island Park area). Look out for ice on the roadway. Look out for packed snow patches on the roadway. Be prepared for light snow. Be prepared for gusty winds. Look out for drifting snow on the roadway. Visibility is reduced.
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