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Aletsch Snow Forecast - 20th August 2026

Aletsch Snow Report and Forecast

ECMWF IFS
GFS

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Updated 20 August 2026 12:11 IST

Snow Forecast for Aletsch

Snow and Weather from 20 August.

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?
There is no snow currently in the forecast for Aletsch.
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Forecast for today in Aletsch

Max 25℃
Min 16℃

Valley temperatures from an overnight low of 16℃ to daytime highs around 25℃

Temperature at BaseTemp at Base

Thu
20

Snow unlikely

Lt DrizzleLt RainStormLt Drizzle

Light drizzle first, light rain showers then thunderstorms, light drizzle later.

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)
Thu
20
Fri
21
Sat
22
Sun
23
Mon
24
Tue
25
Wed
26
Wind
2,900m
13℃
Lt Drizzle
7℃
Light Snow
8℃
Clear
12℃
Clear
12℃
Fair
11℃
Lt Drizzle
14℃
Fair
1,975m
19℃
Lt Drizzle
13℃
Lt Drizzle
14℃
Clear
18℃
Clear
18℃
Fair
17℃
Lt Drizzle
20℃
Fair
1,050m
25℃
Shwrs
19℃
Lt Drizzle
21℃
Cloud
25℃
Fair
24℃
Cloud
23℃
Mixed
26℃
Mixed
Snow Line

2,696m

Max Town25℃19℃21℃25℃24℃23℃26℃
Min Town16℃12℃9℃5℃10℃15℃11℃

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 DayThFrSaSuMoTuWe
Grindelwald1cm 1cm
Interlaken1cm 1cm
Saas-Fee1cm 1cm

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.

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.