Winter Weather Advisory
2025-12-05T11:00:00-07:00

...PROLONGED SNOW EVENT... .A plume of snow will continue to impacted north central Idaho into west central and southwest Montana tonight. The snow activity will decrease in intensity during the day on Friday, then a second plume of precipitation will impact the region late Friday through Saturday. * WHAT...Snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations up to 3 inches in the valleys and 4 to 9 inches in the higher terrain and mountain passes. * WHERE...Highway 28 Tendoy to Lone Pine, Lemhi Pass, Shoup, Bannock Pass, Williams Creek Summit, Highway 93 Lost Trail Pass to Gibbonsville, and Salmon. * WHEN...From 5 PM this afternoon to 11 AM MST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes, especially over higher passes.


Lost Trail Ski Report

Rate this place

Last Updated: December 4, 2025

A chilly start to the morning at Lost Trail with overnight lows dipping to 15.8°F, setting the stage for a wintery week ahead. Lost Trail ski resort in Idaho offers a variety of trails suitable for skiers of all skill levels.


0"

New Snowfall

13.0"

Snowpack

°F

°F

mph

Wind

%

Humidity


Summary

The mountain is currently sitting on a modest snowpack of 13 inches—about 45% below average for this time of year—but there's good news on the horizon. A fresh dusting of nearly 2 inches is expected in the next 24 hours, with a much more promising 14+ inches forecasted over the next three days. By the weekend, skiers and riders could be carving through up to 18 inches of new powder if the storm track delivers as predicted.

While terrain is still somewhat limited due to the shallow base, colder temps are preserving what little snow there is, and snowmaking has helped bolster coverage on key runs. No major incidents or closures are reported, and with clear skies early in the day transitioning to snow showers by mid-afternoon, it may be a great time to sneak in some early-season turns. Keep an eye on changing weather and check trail openings as patrol evaluates conditions. The season’s momentum is building—get ready for a potential powder reset later this week.


Hourly Snowfall Totals

Recent & Projected

Snowpack Percent Normal

54%

Max Recorded Snowpack

110"

Snowfall Past 24 Hours

0.0"

Snowfall Past 72 Hours

2"

Snowfall Next 24 Hours

2"

Snowfall Next 72 Hours

14"

Snowfall Next 5 Days

18"

Terrain Surface

NA

Powder Score

NA
       

Weather Forecast

Seasonal Comparison

Year over year snow water equivalent


Snow Water Equivalent (SWE) shows how much water the snow holds. This is ideal for year-to-year tracking of real snowfall and water resources. Measurements from Saddle Mtn..

Regional Snowpack Depth

Snow levels measured from Saddle Mtn.


Snowpack depth measures how much snow has accumulated in the area. This is a key indicator of powder quality, trail coverage, and how epic your runs are going to be this season at Lost Trail.

Historical Air Temperature

Temperature fluctuations at Lost Trail


Recent air temperature fluctuations at Lost Trail impact snow quality and stability, from powder to slush.

About the Area


Lost Trail Ski Resort is located in the Bitterroot Mountain Range in Idaho and Montana. The resort is situated on the border of Idaho and Montana and offers stunning views of the surrounding mountains. Some of the prominent mountain aspects at Lost Trail Ski Resort include:

1. The Bitterroot Mountain Range: The Bitterroot Mountains are a subrange of the Rocky Mountains and are known for their rugged beauty and impressive peaks. The range stretches from northern Idaho into Montana and offers a variety of terrain for skiing and snowboarding.

2. Trapper Peak: Trapper Peak is the highest point in the Bitterroot Mountains and is a prominent feature in the landscape surrounding Lost Trail Ski Resort. The peak is a popular destination for hikers and climbers looking for challenging terrain and breathtaking views.

3. Lost Trail Pass: Lost Trail Pass is a mountain pass located near the ski resort and provides access to the Continental Divide. The pass offers stunning views of the surrounding mountains and is a popular spot for backcountry skiing and snowmobiling.

Overall, the mountain ranges and aspects surrounding Lost Trail Ski Resort offer a diverse and beautiful backdrop for visitors to enjoy while skiing and snowboarding.

The best trails are the groomed runs on the front side of the mountain, which provide excellent views of the surrounding landscape. An interesting fact about Lost Trail is that it was originally established as a mining town in the 1800s, and the ski resort was built on the site of an old gold mine. For beginner skiers, the best trail is the Greenhorn run, which is gentle and wide. The best après ski bar at Lost Trail is the Saddle Up Saloon, where visitors can enjoy cold beers and hearty meals in a rustic atmosphere.

Lift Count

8 Lifts

Base Elevation

1951 Meters

Terrain Park

Yes

Acreage

1800 Acres

Established

1938

Run Count

50 Trails

Top Elevation

2499 Meters

Lost Trail FAQ


How much snow did Lost Trail receive over the past day?

The ski area received 0" of new snowfall since yesterday.


What's the weather like at Lost Trail today?

Weather today, snow likely, mainly after 2pm. mostly cloudy, with a high near 23. west southwest wind 6 to 9 mph. chance of precipitation is 70%. total daytime snow accumulation of 1 to 2 inches possible.


How much new snowfall is forecasted for Lost Trail this week?

Lost Trail is expected to receive up to 18.15" of new snowfall in the next 5 days.


What are ski area conditions in Idaho like right now?

Montana is seeing significant snowfall forecasts in the southwestern and northwestern regions. The highest 5-day snowfall totals are expected near Twin Lakes (35"), Twelvemile Creek and Hoodoo Basin (33"), and Noisy Basin (27"). These areas are closest to major ski destinations like Lost Trail Powder Mountain and Montana Snowbowl. The Big Sky area, near Lone Mountain and Carrot Basin, is ... Read more