Weather
A strong Thursday-Friday pulse brings the best snow to southwest Montana and the Tetons, then the Northern Rockies turn mostly quieter and milder for the weekend before another wind-driven storm threat builds early next week. The best turns favor higher terrain in western Wyoming and southwest Montana through Friday night, while many Idaho areas lean lighter and more wind affected. Confidence is highest through Saturday morning, so that is where timing and snowfall detail are sharpest. After that, confidence drops as guidance spread grows on how quickly the next round organizes and where its heaviest bands set up.
From Thursday through Friday night, guidance is converging on timing, with snowfall peaking Thursday afternoon through overnight and then tapering to lighter showers into Saturday morning. Intensity spread is still present but notably smaller than later periods, keeping the most consistent in-window snowfall over Big Sky, Bridger Bowl, and Grand Targhee in the 10″-17″ range, while much of Idaho trends near 0″-2″. While snow is falling, most solutions keep snow levels around 3,000 to 5,000 feet. Snow quality should be mostly moderate to fairly light with SLRs near 10-16, with occasional denser bursts around SLR 8-10. Wind remains a major ski-impact variable through Friday, with frequent gusts in the 35-55 mph range on exposed ridges and passes.
Saturday and Sunday look like a relative reset, and guidance is tightly clustered on weaker snowfall intensity, warmer daytime conditions, and continued west to northwest wind. New accumulation should be limited at most resorts, generally around 0″-2″ in favored high terrain with longer dry breaks elsewhere. Confidence is high on the quieter timing and lower precipitation coverage, but there is still divergence on wind strength, especially Sunday into Sunday night when gustier outcomes become more plausible. For ski quality, Friday is still the better chase window before weekend warming and wind work the new surface. All ten forecast resorts are currently open, so terrain choice and wind shelter will matter more than broad storm coverage through the weekend.
Early next week, guidance converges on a frontal wave Monday into Tuesday but diverges on exact placement, snowfall intensity, snow-level evolution, and wind magnitude. While precipitation is falling Monday into Tuesday, snow levels are likely to start around 6,500 to 8,000 feet in parts of Idaho, then drop toward many valley floors behind the front. Snow quality should vary more than in the short term, with SLRs broadly around 7-18, meaning denser snow earlier and lower, then lighter snow as colder air settles in. Outside the confidence window, a conservative read supports mountain snowfall potential around 6″-18″ in favored terrain and 0″-6″ in lower-coverage zones, with locally higher outcomes possible where bands persist. The larger late-period signal still leans active across Idaho and Montana, so additional refresh opportunities remain on the table beyond midweek.
Resort Forecast Totals (Thu Mar 05 – Sat Mar 07)
- Big Sky – 13″-17″
- Bridger Bowl – 11″-13″
- Grand Targhee – 10″-13″
- Jackson Hole – 5″-6″
- Schweitzer – 2″
- Brundage – 2″
- Whitefish Mountain – 1″-2″
- Bogus Basin – 1″
- Tamarack – 0″-1″
- Sun Valley – 0″
