Aletsch 7-Day Snow Forecast

Aletsch Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 20 March 2026 11:45 PDT

Long-Range Snow Forecast for Aletsch

Long-range (14 to 45 days) from 20 March.

For Forecast detail, see below.

Aletsch Snow Forecast Highlights

When will there be fresh snow in Aletsch?

Aletsch Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (6,480ft)
Next Snow Expected	22 March
Next Snow Amount	1in
Next 48 Hours	2in
Next 7 Days	7in
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Aletsch

Snowfall

Snow Line

Max 50°F
Min 15°F

6in New Snow

Snow Line from 5,715ft to resort level (3,445ft).

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Aletsch 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 Aletsch from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Fri 20	Clear sky.	Max 50°F Min 19°F
Sat 21	New Snow Cloudy. Snow Line from 5,564ft to 4,150ft, with rain below.	Max 47°F Min 21°F
Sun 22	up to 1in New Snow Heavy snow showers. Snow Line from 4,606ft to resort level (3,445ft).	Max 40°F Min 22°F
Mon 23	Clear sky at altitude, cloudy below.	Max 47°F Min 15°F
Tue 24	Cloudy at altitude, clear spells below.	Max 50°F Min 15°F
Wed 25	up to 1in New Snow Light snow showers. Snow Line from 5,715ft to resort level (3,445ft).	Max 46°F Min 25°F
Thu 26	2in to 3in New Snow Heavy snow showers. Snow falling to resort level (3,445ft).	Max 31°F Min 20°F

This Snow Forecast for Aletsch, Switzerland 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 Aletsch, 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.

Aletsch Snow Forecast updated at 11:45 PDT, next update expected 17:00 PDT.

Ensemble forecast for Aletsch, Switzerland at 3,445ft

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.

Snow Forecast near Aletsch

Snow Forecasts for Ski Resorts near Aletsch
Ski Area	48 Hr	7 Day
Interlaken	1in	21in
Grindelwald	1in	20in
Wengen	1in	18in
Adelboden	1in	18in
Kandersteg	1in	17in
Fiescheralp	2in	16in
Riederalp	2in	11in
Bettmeralp	2in	11in

Snow Reliability

Aletsch enjoys reliable snow conditions with average snow depths reaching up to 3 meters during peak season. Regular snowfall throughout the winter months helps maintain excellent skiing conditions, and for the latest updates, check J2Ski for real-time snow information.

Off-Piste Safety in Aletsch

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