Lookout Pass

Lookout Pass Weather & Road Conditions

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.

  • Elevation: 4,711 ft
  • Carries: I-90
  • State: Idaho
  • Road system: Interstate Highway System

Temperature

Wind Speed

Rain Precip.

Coverage

Weather data from Sep 14, 2026 9:03 PM MDT

Up to 144 hours

Lowest temp.

45°F

Highest temp.

54°F

Highest wind

1 mph

Pressure

30.06-30.15 inHg

Lookout Pass Closures & Road Blocks Today

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.

Lookout Pass Chain Control & Traction Requirements

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.

Lookout Pass Weather Forecast: Next 6 Days

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.

  1. Rest of today Sep 14

    42°F 40°F

    Moist

    Wind to 4 mph

  2. Tue Sep 15

    61°F 37°F

    Ice worst around 2 AM

    Wind to 6 mph
    0.01 in precipitation

  3. Wed Sep 16

    71°F 36°F

    Ice worst around 12 AM

    Wind to 4 mph

  4. Thu Sep 17

    77°F 39°F

    Dry

    Wind to 5 mph

  5. Fri Sep 18

    75°F 46°F

    Wet worst around 5 AM

    Wind to 9 mph
    0.04 in precipitation

  6. 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.

Lookout Pass Road Weather FAQ

Is Lookout Pass open right now?
No full closures are reported on Lookout Pass. No lane closures or roadworks are reported either.
What are Lookout Pass road conditions today?
The map on this page colors the route along Lookout Pass by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Sep 14, 2026 9:03 PM MDT. Right now temperatures run from 45°F to 54°F and the strongest wind is 1 mph.
Do I need chains on Lookout Pass today?
Chain and traction requirements are set by the state highway authority and change through the day, so check them directly before you set off at 511.idaho.gov. This page does not carry them. What this page can tell you is that the surface at the summit is dry, and the road surface is estimated at 42°F.
What is the weather forecast for Lookout Pass this week?
At the summit, Sep 14 to Sep 19: highs 42-77°F, lows 36-46°F. Snow or ice is forecast on the road Tue and Wed. It is a forecast rather than a measurement, and the later days are less certain than the earlier ones.
How often are Lookout Pass road conditions updated?
The road surface and weather layers are rebuilt whenever this page is opened with data more than ten minutes old, and refreshed on a schedule in between, so nothing here is more than about two hours old even on a road nobody has looked at. Closures and road blocks are re-imported from the state 511 feeds every fifteen minutes, and the written state-by-state summaries are refreshed daily. Every section on this page carries the time its data was fetched.

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