Idaho Transportation Department Logo Idaho Transportation Department   Highway Info
US 20
US 20: Dry pavement, cloudy.

Between US 95 (near Parma) and I-84 (near Caldwell). Expect dry pavements. Cloudy skies.

Forecast Weather: Chance of Light Rain. Wind gusts of up to 9 mph are expected.

Last updated yesterday at 12:04pm MST
US 20: Dry pavement, cloudy.

Between I-84 (Caldwell) and ID 16 (3 miles west of the Eagle area). Expect dry pavements. Cloudy skies.

Forecast Weather: Chance of Light Rain. Wind gusts of up to 7 mph are expected.

Last updated yesterday at 12:04pm MST
US 20: Wet pavement, cloudy.

Between ID 16 (3 miles west of the Eagle area) and I-184 (Boise). The road is wet. Cloudy skies.

Forecast Weather: Chance of Light Rain. Wind gusts of up to 7 mph are expected.

Last updated yesterday at 12:38pm MST
US 20: Wet pavement, rain, large animals on roadway.

Between I-84; ID 51 (Mountain Home) and Cat Creek Summit (26 miles west of the Fairfield area). The road is wet. Expect rain. Look out for large animals on the roadway.

Forecast Weather: Likelihood of Light Snow. Likelihood of Light Rain. Expect up to 0.5 inches of new snow accumulation. Wind gusts of up to 22 mph are expected.

Last updated yesterday at 12:40pm MST
US 20: Slush, wet pavement, cloudy, dense fog.

Between Cat Creek Summit (26 miles west of the Fairfield area) and First Street West (Fairfield). Look out for slush on the roadway. The road is wet. Cloudy skies. Be ready for dense fog.

Forecast Weather: Likelihood of Light Snow. Expect up to 1 inches of new snow accumulation. Wind gusts of up to 24 mph are expected.

Last updated yesterday at 6:40pm MST
US 20: Slush, wet pavement, cloudy.

Between First Street West (Fairfield) and ID 75 (16 miles west of the Carey area). Look out for slush on the roadway. The road is wet. Cloudy skies.

Forecast Weather: Chance of Light Snow. Expect up to a trace of new snow accumulation. Wind gusts of up to 22 mph are expected.

Last updated yesterday at 10:21am MST
US 20: Wet pavement, cloudy.

Between ID 75 (16 miles west of the Carey area) and US 26 (Carey). The road is wet. Cloudy skies.

Forecast Weather: Chance of Light Snow. Expect up to a trace of new snow accumulation. Wind gusts of up to 21 mph are expected.

Last updated yesterday at 12:36pm MST
US 20: Wet pavement, cloudy, patchy fog.

Between US 26 and Blizzard Mountain Road (15 miles east of the Carey area). The road is wet. Cloudy skies. Be ready for patchy fog.

Forecast Weather: Chance of Light Snow. Expect up to a trace of new snow accumulation. Wind gusts of up to 22 mph are expected.

Last updated yesterday at 12:20pm MST
US 20: Wet pavement, clear skie.

Between Lava Lake Road (15 miles east of the Carey area) and US 93 (Arco). The road is wet. Weather conditions clear.

Forecast Weather: Chance of Light Snow. Expect up to 1 inches of new snow accumulation. Wind gusts of up to 25 mph are expected.

Last updated yesterday at 1:23pm MST
US 20: Wet pavement, clear skie.

Between US 93 (Arco) and Van Buren Boulevard (13 miles east of the Butte City area). The road is wet. Weather conditions clear.

Forecast Weather: Slight chance of Light Snow. Expect up to a trace of new snow accumulation. Wind gusts of up to 26 mph are expected.

Last updated yesterday at 1:23pm MST
US 20: Wet pavement, rain and snow mixed.

Between Van Buren Boulevard (13 miles east of the Butte City area) and I-15; I-15B (Idaho Falls). The road is wet. Look out for a mix of rain and snow.

Forecast Weather: Slight chance of Light Snow. Expect up to 0.5 inches of new snow accumulation. Wind gusts of up to 33 mph are expected.

Last updated yesterday at 1:23pm MST
US 20: Wet pavement, cloudy.

Between I-15 (Idaho Falls) and The South Fork Teton River Bridge (Rexburg). The road is wet. Cloudy skies.

Forecast Weather: Chance of Light Snow. Expect up to 1 inches of new snow accumulation. Wind gusts of up to 29 mph are expected.

Last updated yesterday at 1:21pm MST
US 20: Wet pavement, light snow.

Between ID 33 (Rexburg) and The South Ashton City Limits (6 miles west of the Ashton area). The road is wet. Be prepared for light snow.

Forecast Weather: Chance of Light Snow. Expect up to 1.5 inches of new snow accumulation. Wind gusts of up to 22 mph are expected.

Last updated yesterday at 1:23pm MST
US 20: Snow on roadway, snow, gusty winds, drifting snow, reduced visibility, snow chains recommended.

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. Be prepared for gusty winds. Look out for drifting snow on the roadway. Visibility is reduced. Snow chains are recommended.

Forecast Weather: Chance of Light Snow. Expect up to 2.5 inches of new snow accumulation. Wind gusts of up to 25 mph are expected.

Last updated today at 12:04am MST
US 20: Winter Storm Warning.

Between 1000 North Road (1 mile west of the Ashton area) and The Montana State Line (3 miles east of the Island Park area). A Winter Storm Warning is in effect. For the next half day.

Winter Storm Warning issued December 12 at 1:47PM MST until December 13 at 11:00AM MST by NWS Pocatello ID

* WHAT...Heavy snow expected. Additional snow accumulations of 3 to 5 inches are forecast below 6500 feet, and 6 to 10 inches above 6500 feet including ridge tops and passes. Pockets of blowing snow are possible through Friday morning, especially at higher elevations. * WHERE...The Bear River Range, the Caribou Range, the Big Hole Mountains including Pine Creek Pass, and regions from Driggs north to Island Park. * WHEN...Until 11 AM MST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute.

Full NWS alert

Last updated yesterday at 1:47pm MST
US 20: Snow on roadway, snow, drifting snow.

Between Recreational Access Road and The Montana State Line (3 miles east of the Island Park area). Look out for snow on the roadway. Be prepared for snow. Look out for drifting snow on the roadway.

Forecast Weather: Chance of Light Snow. Expect up to 2 inches of new snow accumulation. Wind gusts of up to 24 mph are expected.

Last updated yesterday at 2:49pm MST
Switch to Road Reports
Switch to Truck Restrictions
Reports on US 20
Map of Reports on US 20 Between US 95 (near Parma) and I-84 (near Caldwell). Expect dry pavements. Cloudy skies. Between I-84 (Caldwell) and ID 16 (3 miles west of the Eagle area). Expect dry pavements. Cloudy skies. Between ID 16 (3 miles west of the Eagle area) and I-184 (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. Look out for large animals on the roadway. Between Cat Creek Summit (26 miles west of the Fairfield area) and First Street West (Fairfield). Look out for slush on the roadway. The road is wet. Cloudy skies. Be ready for dense fog. Between First Street West (Fairfield) and ID 75 (16 miles west of the Carey area). Look out for slush on the roadway. The road is wet. Cloudy skies. Between ID 75 (16 miles west of the Carey area) and US 26 (Carey). The road is wet. Cloudy skies. Between US 26 and Blizzard Mountain Road (15 miles east of the Carey area). The road is wet. Cloudy skies. Be ready for patchy fog. Between Lava Lake Road (15 miles east of the Carey area) and US 93 (Arco). The road is wet. Weather conditions clear. Between US 93 (Arco) and Van Buren Boulevard (13 miles east of the Butte City area). The road is wet. Weather conditions clear. Between Van Buren Boulevard (13 miles east of the Butte City area) and I-15; I-15B (Idaho Falls). The road is wet. Look out for a mix of rain and snow. Between I-15 (Idaho Falls) and The South Fork Teton River Bridge (Rexburg). The road is wet. Cloudy skies. Between ID 33 (Rexburg) and The South Ashton City Limits (6 miles west of the Ashton area). The road is wet. Be prepared for light snow. 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. Be prepared for gusty winds. Look out for drifting snow on the roadway. Visibility is reduced. Snow chains are recommended. Between Recreational Access Road and The Montana State Line (3 miles east of the Island Park area). Look out for snow on the roadway. Be prepared for snow. Look out for drifting snow on the roadway. Between 1000 North Road (1 mile west of the Ashton area) and The Montana State Line (3 miles east of the Island Park area). A Winter Storm Warning is in effect. For the next half day.
Google Static Map Image
State conditions legend State
Closure Closure
Weather warning legend Weather Warning