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Aletsch Snow Forecast - 20th October 2026

Aletsch Snow Report and Forecast

ECMWF IFS
GFS

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Updated 20 October 2026 08:51 CDT

Snow Forecast for Aletsch

Snow and Weather from 20 October.

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 Expected21 October
Next Snow Amount2cm
Next 48 Hours4cm
Next 7 Days27cm
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Forecast for today in Aletsch

Max 13℃
Min 9℃

Valley temperatures from an overnight low of 9℃ to daytime highs around 13℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Tue
20

up to 9cm New Snow

Lt DrizzleLt DrizzleLt RainLt Rain

Light drizzle early, then light rain later.

Snow Line from 2,712m to 2,204m, with rain below.

Forecast times for Aletsch are in Zurich (Europe/Zurich) time zone.

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Aletsch 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Aletsch from OpenMeteo(ECMWF IFS)
Tue
20		Wed
21		Thu
22		Fri
23		Sat
24		Sun
25		Mon
26
Wind
2,900m
0℃
Light Snow
+9cm
-2℃
Snow
+22cm
-3℃
Lt Snow Shwrs
+2cm
-5℃
Light Snow
+3cm
-7℃
Light Snow
+1cm
-6℃
Hvy Snow
+19cm
-6℃
Fog
1,975m
6℃
Lt Drizzle
4℃
Snow
+2cm
3℃
Lt Snow Shwrs
+2cm
1℃
Light Snow
+3cm
-1℃
Light Snow
+1cm
0℃
Hvy Snow
+19cm
0℃
Fog
1,050m
13℃
Lt Drizzle
10℃
Lt Rain
11℃
Clear
9℃
Cloud
5℃
Snow
+3cm
6℃
Light Snow
+2cm
9℃
Fog
Snow Line

varying 2,712m
to 2,204m

varying 2,327m
to 1,665m

varying 1,588m
to 1,342m

varying 1,881m
to 1,050m

varying 1,527m
to 1,050m

varying 1,712m
to 1,050m

Max Town13℃10℃11℃9℃5℃6℃9℃
Min Town9℃6℃1℃2℃-5℃-6℃-6℃

This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.

Switzerland Accommodation (Apartments, Chalets, Hotels) Map

 

Snow Forecast near Aletsch

Snow Forecasts for Ski Resorts near Aletsch
Ski Area 48 Hr 7 DayTuWeThFrSaSuMo
Fiescheralp23cm 61cm
Grindelwald20cm 61cm
Saas-Fee42cm 60cm
Riederalp18cm 50cm
Bettmeralp17cm 49cm
Adelboden7cm 37cm
Interlaken15cm 33cm
San Domenico14cm 30cm

How reliable is the snow in Aletsch?

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.

Understanding and predicting Snow Conditions in Aletsch

Here are our tips for making the most of a trip to Aletsch, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Aletsch, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.

Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:

Pistes (Groomers) or Off-Piste

These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.

  • Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
  • Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.

WARNING - skiing off-piste (out-of-bounds) at Aletsch is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.

Analyzing Weather and Snowfall Forecasts

Whilst no forecast can tell you exactly how snow conditions in Aletsch will develop, checking the forecast regularly should give you an idea of what to expect.

New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.

Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.

Predicting Future Snow Quality

Regularly check our snow and weather forecasts for Aletsch for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.

Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.