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Radar and live pavement conditions at the summit of Lookout Pass and on both climbs — plus closures, road work and who sets chain control on I-90.
Elevation 4,711 ft · Updated Sep 14, 2026 9:03 PM MDT · Mostly dry, wet in places
Lowest 45°F · Highest wind 1 mph
At the summit: Dry · 45°F · road surface est. 42°F · 1 mph wind
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Lookout Pass carries Interstate 90 over the Bitterroot Range at 4,711 feet, on the Idaho–Montana state line. It is the high point of the drive between Coeur d’Alene and Missoula, and snow and low visibility are common from October to April.
Weather data from Sep 14, 2026 9:03 PM MDT
No full closures are reported on Lookout Pass as of Sep 14, 2026 9:03 PM MDT, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.
Chain and traction requirements on Lookout Pass are set by the state highway authority, and they are imposed and lifted through the day as a storm moves through. This page does not carry them — check 511.idaho.gov ↗ before you set off.
What this page can tell you is the surface at the summit, from radar and surface analysis: currently dry, with the road surface estimated at 42°F. The road surface figure is an estimate derived from air temperature, not a measurement — bridges and overpasses run colder than the number shown.
At the summit, 4,711 ft. Each day shows its warmest and coldest hour, and the worst driving conditions forecast anywhere in it — not the average, because the hour that closes a pass is the one worth knowing about.
Rest of today Sep 14
42°F 40°F
Moist
Wind to 4 mph
Tue Sep 15
61°F 37°F
Ice worst around 2 AM
Wind to 6 mph
0.01 in
precipitation
Wed Sep 16
71°F 36°F
Ice worst around 12 AM
Wind to 4 mph
Thu Sep 17
77°F 39°F
Dry
Wind to 5 mph
Fri Sep 18
75°F 46°F
Wet worst around 5 AM
Wind to 9 mph
0.04 in
precipitation
Sat Sep 19
71°F 45°F
Dry
Wind to 7 mph
Forecast, not a measurement — from the same weather service that draws this page's radar and road colors, model run 9 hours ago. Days run on Mountain time, the clock the pass keeps — not the reader's.
The same live radar and road-surface data as this map, on your phone and on Apple CarPlay or Android Auto.
Weather Navigation carries the same radar and road-surface data on Apple CarPlay and Android Auto, with a weather-aware route planner, storm-cell tracking and radar that refreshes every two minutes over the US.