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Alt St. Johann Weather Forecast - 7 to 16 days - 20th March 2026

Alt St. Johann Weather

ECMWF IFS
GFS

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Weather Forecast for Alt St. Johann (900m to 2,262m)

Weather Outlook from 20 March.

Alt St. Johann Forecast

See below for the detailed long-range forecast, including lowest and highest temperatures, sunshine, cloud cover, wind and rain projections.

Alt St. Johann Weather Forecast updated at 05:41 AEDT, next update expected 11:00 AEDT.

Long-range Snow Outlook for Alt St. Johann

 
Snowfall

 
Snow Line

Max 10℃
Min -4℃

23cm New Snow

Snow Line from 1,731m to resort level (900m).

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Alt St. Johann Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Alt St. Johann from OpenMeteo(ECMWF IFS)
BaseSnow and WeatherTemp
Town
Fri
20
Mixed

Clear spells.

Max 9℃
Min 0℃
Sat
21
Cloud

up to 1cm New Snow
Cloudy.
Snow Line from 1,608m to 946m, with rain below.

Max 8℃
Min 1℃
Sun
22
Lt Snow Shwrs

1cm New Snow
Light snow showers.
Snow falling to resort level (900m).

Max 10℃
Min 0℃
Mon
23
Light Snow

1cm New Snow
Light snow.
Snow Line from 1,485m to resort level (900m).

Max 6℃
Min 0℃
Tue
24
Mixed

Clear spells.

Max 10℃
Min -1℃
Wed
25
Lt Snow Shwrs

6cm to 8cm New Snow
Light snow showers.
Snow Line from 1,731m to resort level (900m).

Max 8℃
Min -2℃
Thu
26
Snow

12cm New Snow
Heavy snow showers.
Snow falling to resort level (900m).

Max -1℃
Min -4℃

This Snow Forecast for Alt St. Johann, 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 Alt St. Johann, 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.

Alt St. Johann Weather Forecast updated at 05:41 AEDT, next update expected 11:00 AEDT.

Current Snow

For current snow depths and skiing conditions, see our Current Snow Report for Alt St. Johann.

Switzerland Hotels Map

 

For more information about this Swiss Ski Resort, See Also Skiing and Snowboarding in Alt St. Johann .

Off-Piste Safety in Alt St. Johann

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