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US 20
US 20 in both directions: Dry pavement, clear skies.
Between US 95 (near Parma) and I-84 (near Caldwell). Expect dry pavements. Weather conditions clear.
Last updated today at 12:39pm MST
US 20 in both directions: Dry pavement, clear skies.
Between I-84 (Caldwell) and I-184 (Boise). Expect dry pavements. Weather conditions clear.
Last updated today at 12:39pm MST
US 20: Road closed to traffic, due to bridge construction work, detour in operation.
Between Avenue A and University Drive (near Boise). The road is closed to traffic due to bridge construction work. A detour is in operation. Until October 1.

Web Comment: – Pile driving at the Broadway Avenue Bridge begins Wednesday (Jan. 13). Over the next four to six weeks, crews will hammer steel piles into the ground to support the new bridge being built over the Boise River. Pile driving will occur seven days a week from 7 a.m. to 7 p.m. Drivers and surrounding neighbors will hear high noise volumes during this work, as pile driving is loud. 129,000 LB Max Reducible loads thru detour, including No overweight permits

More Info: Broadway bridge
Last updated on January 29
US 20 in both directions: Dry pavement, cloudy, large animals on roadway, drifting 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. Look out for drifting snow on the roadway.
Last updated today at 1:34pm MST
US 20 in both directions: Dry pavement, cloudy.
Between Cat Creek Summit (26 miles west of the Fairfield area) and Van Buren Boulevard (13 miles east of the Butte City area). Expect dry pavements. Cloudy skies.
Last updated today at 1:23pm MST
US 20 in both directions: Dry pavement, patchy fog, dense fog.
Between Van Buren Boulevard (13 miles east of the Butte City area) and I-15; US 91 (Idaho Falls). Expect dry pavements. Be ready for patchy fog. Be ready for dense fog.
Last updated today at 8:38pm MST
US 20 in both directions: Dry pavement, cloudy.
Between I-15 (Idaho Falls) and Harriman State Park (2 miles west of the Island Park area). Expect dry pavements. Cloudy skies.
Last updated today at 1:22pm MST
US 20 in both directions: Wet pavement, cloudy, 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). The road is wet. Cloudy skies. Be ready for patchy fog.
Last updated today at 1:22pm MST
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Reports on US 20
Map of Reports on US 20 Between US 95 (near Parma) and I-84 (near Caldwell). Expect dry pavements. Weather conditions clear. Between I-84 (Caldwell) and I-184 (Boise). Expect dry pavements. Weather conditions clear. Between Avenue A and University Drive (near Boise). The road is closed to traffic due to bridge construction work. A detour is in operation. Until October 1. 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. Look out for drifting snow on the roadway. Between Cat Creek Summit (26 miles west of the Fairfield area) 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; US 91 (Idaho Falls). Expect dry pavements. Be ready for patchy fog. Be ready for dense fog. Between I-15 (Idaho Falls) 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. Be ready for patchy fog.
US 20: Road closed to traffic, due to bridge construction work, detour in operation.
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Closure Closure
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Weather warning legend Weather Warning