Alyeska 7-Day Snow Forecast

Alyeska Long-Range Snow Forecast Updated today

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Updated 22 October 2026 22:48 PDT

Long-Range Snow Forecast for Alyeska

Long-range (14 to 45 days) from 23 October.

For Forecast detail, see below.

Alyeska Snow Forecast Highlights

When will there be fresh snow in Alyeska?

Alyeska Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (1,509ft)
Next Snow Expected	1 November
Next Snow Amount	1in
Next 48 Hours	-
Next 7 Days	-

Long-range Snow Outlook for Alyeska

Snowfall

Snow Line

Max 45°F
Min 28°F

2in New Snow

Snow Line from 1,834ft to 620ft, with rain below.

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Alyeska Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Alyeska from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Fri 23	Cloudy.	Max 38°F Min 28°F
Sat 24	New Snow Cloudy. Snow Line from 1,440ft to 1,014ft, with rain below.	Max 39°F Min 31°F
Sun 25	up to 1in New Snow Light snow at altitude, light drizzle below. Snow Line from 1,801ft to 1,506ft, with rain below.	Max 40°F Min 38°F
Mon 26	Cloudy.	Max 43°F Min 36°F
Tue 27	Clear sky.	Max 45°F Min 41°F
Wed 28	Cloudy.	Max 42°F Min 38°F
Thu 29	up to 1in New Snow Light snow at altitude, light drizzle below. Snow Line from 1,834ft to 620ft, with rain below.	Max 40°F Min 38°F

This Snow Forecast for Alyeska, United States gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Alyeska, on any given trail or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Alyeska Snow Forecast updated at 22:48 PDT, next update expected 04:00 PDT.

Ensemble forecast for Alyeska, USA at 262ft

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

United States Accommodation (Apartments, Chalets, Hotels) Map

How reliable is the snow in Alyeska?

Alyeska typically sees an impressive average snowfall of 650 inches annually, with snow depths varying throughout the season. For the latest snow conditions and detailed reports, check J2Ski for up-to-date information.

Off-Piste Safety in Alyeska

Before skiing or snowboarding off-piste in Alyeska, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.