Aletsch 7-Day Snow Forecast

Aletsch Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 02 May 2026 14:44 BST

Long-Range Snow Forecast for Aletsch

Long-range (14 to 45 days) from 2 May.

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 (1,975m)
Next Snow Expected	10 May
Next Snow Amount	3cm 1in
Next 48 Hours	- -
Next 7 Days	2cm 1in
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Aletsch

Snowfall

Snow Line

Max 14℃ 57°F
Min 2℃ 35°F

6cm 2in New Snow

Snow Line from 2,435m 7,989ft to 1,588m 5,210ft , with rain below.

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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
Sat 02	Cloudy.	Max 14℃ 57°F Min 3℃ 38°F
Sun 03	Cloudy.	Max 13℃ 56°F Min 2℃ 35°F
Mon 04	up to 1cm New Snow Cloudy at altitude, light drizzle below. Snow Line from 2,312m 7,585ft to 1,588m 5,210ft , with rain below.	Max 10℃ 49°F Min 5℃ 41°F
Tue 05	up to 1cm New Snow Cloudy. Snow Line from 2,235m 7,333ft to 1,665m 5,463ft , with rain below.	Max 9℃ 49°F Min 5℃ 41°F
Wed 06	up to 3cm up to 1in New Snow Snow showers at altitude, light drizzle below. Snow Line from 2,388m 7,835ft to 1,681m 5,515ft , with rain below.	Max 10℃ 50°F Min 6℃ 42°F
Thu 07	Clear sky at altitude, clear spells below.	Max 13℃ 56°F Min 5℃ 40°F
Fri 08	up to 1cm New Snow Cloudy at altitude, rain showers below. Snow Line from 2,435m 7,989ft to 1,912m 6,273ft , with rain below.	Max 11℃ 52°F Min 6℃ 43°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 piste 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 14:44 BST, next update expected 20:00 BST.

Ensemble forecast for Aletsch, Switzerland at 1,050m

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.

Switzerland Hotels Map

Snow Forecast near Aletsch

Snow Forecasts for Ski Resorts near Aletsch
Ski Area	48 Hr	7 Day
San Domenico	3cm 1in	18cm 7in
Grindelwald	-	12cm 5in
Interlaken	-	12cm 5in
Saas-Fee	-	9cm 3in
Fiescheralp	1cm -	8cm 3in
Riederalp	1cm -	8cm 3in
Bettmeralp	1cm -	7cm 3in
Adelboden	-	5cm 2in

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.