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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 (2,953ft to 7,421ft)

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 11:41 PDT, next update expected 17:00 PDT.

Long-range Snow Outlook for Alt St. Johann

 
Snowfall

 
Snow Line

Max 50°F
Min 25°F

9in New Snow

Snow Line from 5,679ft to resort level (2,953ft).

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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 49°F
Min 32°F
Sat
21
Cloud

New Snow
Cloudy.
Snow Line from 5,276ft to 3,104ft, with rain below.

Max 45°F
Min 33°F
Sun
22
Lt Snow Shwrs

New Snow
Light snow showers.
Snow falling to resort level (2,953ft).

Max 50°F
Min 31°F
Mon
23
Light Snow

up to 1in New Snow
Light snow.
Snow Line from 4,872ft to resort level (2,953ft).

Max 43°F
Min 33°F
Tue
24
Mixed

Clear spells.

Max 49°F
Min 30°F
Wed
25
Lt Snow Shwrs

2in to 3in New Snow
Light snow showers.
Snow Line from 5,679ft to resort level (2,953ft).

Max 46°F
Min 28°F
Thu
26
Snow

5in New Snow
Heavy snow showers.
Snow falling to resort level (2,953ft).

Max 29°F
Min 25°F

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 11:41 PDT, next update expected 17:00 PDT.

Current Snow

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

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.