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Alt St. Johann Weather Forecast - 7 to 16 days - 17th June 2026

Alt St. Johann Weather

ECMWF IFS
GFS

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Weather Forecast for Alt St. Johann ( 900m to 2,262m 2,953ft to 7,421ft )

Weather Outlook from 17 June.

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 09:45 UTC, next update expected 15:00 UTC.

Long-range Snow Outlook for Alt St. Johann

 
Snowfall

 
Snow Line

Max 29℃ 84°F
Min 16℃ 61°F

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
Wed
17
Clear

Clear sky.

Max 24℃ 75°F
Min 16℃ 61°F
Thu
18
Clear

Clear sky.

Max 27℃ 80°F
Min 17℃ 62°F
Fri
19
Clear

Clear sky.

Max 28℃ 82°F
Min 18℃ 64°F
Sat
20
Clear

Clear sky.

Max 27℃ 80°F
Min 18℃ 64°F
Sun
21
Clear

Clear sky.

Max 28℃ 83°F
Min 18℃ 65°F
Mon
22
Clear

Clear sky.

Max 28℃ 83°F
Min 19℃ 65°F
Tue
23
Clear

Clear sky.

Max 29℃ 84°F
Min 20℃ 68°F

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 09:45 UTC, next update expected 15:00 UTC.

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.