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Alt St. Johann Snow Forecast - 12th April 2026

Alt St. Johann Snow Report and Forecast

ECMWF IFS
GFS

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Updated 12 April 2026 02:46 CDT

Snow Forecast for Alt St. Johann

Snow and Weather from 12 April.

For Forecast detail, see below.

Alt St. Johann Snow Forecast Highlights

When will there be fresh snow in Alt St. Johann?

Alt St. Johann Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,581m)
Next Snow?
There is no snow currently in the forecast for Alt St. Johann.

Forecast for today in Alt St. Johann

Max 11℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 11℃
Freeze-thaw (spring snow) conditions up high.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sun
12

Snow unlikely

Lt DrizzleLt DrizzleLt DrizzleCloud

Light drizzle early, then cloudy later.

Forecast times for Alt St. Johann are in Zurich (Europe/Zurich) time zone.

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Alt St. Johann 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Alt St. Johann from OpenMeteo(ECMWF IFS)
Sun
12		Mon
13		Tue
14		Wed
15		Thu
16		Fri
17		Sat
18
Wind
2,262m
2℃
Light Snow
2℃
Light Snow
+2cm
-2℃
Light Snow
+3cm
2℃
Cloud
4℃
Light Snow
+1cm
6℃
Cloud
7℃
Cloud
1,581m
6℃
Lt Drizzle
7℃
Light Snow
3℃
Light Snow
+1cm
6℃
Cloud
8℃
Light Snow
11℃
Cloud
11℃
Cloud
900m
11℃
Lt Drizzle
11℃
Lt Drizzle
7℃
Lt Drizzle
10℃
Cloud
13℃
Lt Drizzle
15℃
Cloud
16℃
Cloud
Snow Line

varying 2,008m
to 1,992m

varying 2,008m
to 1,715m

varying 1,777m
to 1,438m

varying 1,977m
to 1,592m

varying 1,992m
to 1,654m

Max Town11℃11℃7℃10℃13℃15℃16℃
Min Town8℃7℃5℃6℃6℃2℃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.

Snow Forecast near Alt St. Johann

Snow Forecasts for Ski Resorts near Alt St. Johann
Ski Area 48 Hr 7 DaySuMoTuWeThFrSa
Flims8cm 10cm
Wildhaus3cm 4cm
Flumserberg2cm 2cm
Unteriberg1cm 1cm

Snow Reliability

The snow reliability at Alt St. Johann is generally good, with average snow depths often reaching between 50 to 150 cm during peak season. For the latest snow conditions and updates, check J2Ski for accurate and timely information.

Understanding and predicting Snow Conditions in Alt St. Johann

Here are our tips for making the most of a trip to Alt St. Johann, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Alt St. Johann, 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 Alt St. Johann 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 Alt St. Johann 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 Alt St. Johann 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.