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Reports on ID 21
ID 21
Between I-84 and Robie Creek Road (8 miles north of the Boise area). The road is wet. Expect rain. Look out for large animals on the roadway.
Last updated yesterday at 9:55am MST
Between Highland Valley Summit (8 miles north of the Boise area) and King Road (Idaho City). The road is wet. Expect rain. Look out for large animals on the roadway. There is danger of a rock fall.
Last updated yesterday at 9:02pm MST
Between King Road and Garden Valley Road (32 miles north of the Idaho City area). Look out for packed snow patches on the roadway. The road is wet. Look out for a mix of rain and snow. There is danger of a rock fall.
Last updated yesterday at 9:03pm MST
Between Garden Valley Road (32 miles north of the Idaho City area) and Grandjean Road (35 miles south of the Stanley area). Look out for icy patches. The road is wet. Look out for a mix of rain and snow. Be ready for patchy fog. Look out for large animals on the roadway. There is danger of a rock fall.
Last updated yesterday at 9:00pm MST
Between Grandjean Road and The Custer - Boise County Line (24 to 35 miles south of the Stanley area). The road is closed. There is danger of an avalanche.

Comment: SH 21 closed from milepost 93.75 to milepost 105.5. Highway remains closed until further notice.
Last updated today at 2:00am MST
Between Grandjean Road (24 miles south of the Stanley area) and ID 75 (Stanley). A Winter Storm Warning is in effect. Until today at about 5:00AM MST.

Comment: Winter Storm Warning issued December 21 at 2:12PM MST until December 22 at 5:00AM MST by NWS

.SNOW LEVEL OF 6500 TO 7000 FEET THIS AFTERNOON WILL DROP OVERNIGHT TO 4500 TO 5000 FEET. MANY MOUNTAIN LOCATIONS HAVE RECEIVED TOTAL SNOWFALL AMOUNTS OF 8 TO 15 INCHES. SNOW WILL GRADUALLY TAPER OFF WITH AN ADDITIONAL 3 TO 6 INCHES POSSIBLE BEFORE THE STORM ENDS MONDAY.

Full NWS alert
Last updated yesterday at 2:14pm MST
Between The Custer - Boise County Line (22 miles south of the Stanley area) and ID 75 (Stanley). Look out for snow on the roadway. Be prepared for snow.
Last updated yesterday at 6:52am MST