Idaho DOT Observation Locations

News Headlines

SCN26-34: Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices: Effective May 6, 2026
Easter Weather History

Current Hazards
Current Conditions
Radar
Forecasts
Rivers and Lakes
Climate and Past Weather
Local Programs

Banner Summit
Forecast	RAWS Obs	DOT Obs	Area Map

Banner Summit Area Map

KML Download

Some elevations of interest:

8650 ft - Canyon Creek Summit (highest point on ridge to west of highway)
8500 ft - Canyon Creek Raws Site
7100 ft - Banner Summit RAWS site
7037 ft - Banner Summit Pass Elevation
6014 ft - Fox Trail Ridge RAWS site
4850 ft - Grandjean turnoff
3800 ft - Lowman

Most concern is between the Grandjean turnoff (and closure gate) and Banner Summit, where the highway rises 2200 ft in approximately 11 miles.
The ridge to the WEST of the highway ranges from 7000-8650 ft
The ridge to the EAST of the highway ranges from 8500-9200 ft

BOI RSS Feed