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Alt St. Johann Weather Forecast - 7 to 16 days - 31st August 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 31 August.

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 00:54 NZST, next update expected imminently.

Long-range Snow Outlook for Alt St. Johann

 
Snowfall

 
Snow Line

Max 30℃
Min 10℃

Snow unlikely

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
Mon
31
Lt Drizzle

Light drizzle.

Max 19℃
Min 14℃
Tue
01
Fair

Fair.

Max 21℃
Min 10℃
Wed
02
Cloud

Cloudy.

Max 21℃
Min 12℃
Thu
03
Fair

Fair.

Max 21℃
Min 12℃
Fri
04
Clear

Clear sky.

Max 27℃
Min 13℃
Sat
05
Clear

Clear sky.

Max 29℃
Min 17℃
Sun
06
Clear

Clear sky.

Max 30℃
Min 19℃

No significant snowfall is forecast for this period.

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 piste 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 00:54 NZST, next update expected imminently.

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.