J2Ski J2Ski logo
Facebook

Alt St. Johann 7-Day Snow Forecast - 20th October 2026

Alt St. Johann Snow Forecast - 7 day

ECMWF IFS
GFS

PROSubscribe to Switch Weather Model

Updated 20 October 2026 08:41 BST

7-Day Snow Forecast for Alt St. Johann

1-week from 20 October.

For Forecast detail, see below.

Alt St. Johann 7-Day 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 Expected21 October
Next Snow Amount 2cm 1in
Next 48 Hours 5cm 2in
Next 7 Days 17cm 7in

7-Day Snow Outlook for Alt St. Johann

 
Snowfall

 
Snow Line

Max 20℃ 67°F
Min 1℃ 34°F

27cm 11in New Snow

Snow Line from 2,008m 6,588ft to 1,008m 3,307ft , with rain below.

Partner Offers

Alt St. Johann Medium-Range (7-Day) Snow Forecast Detail

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

Max 20℃ 67°F
Min 7℃ 45°F

Valley temperatures from an overnight low of 7℃ 45°F to daytime highs around 20℃ 67°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Tue
20

Snow unlikely

FogClearCloudCloud

Fog, clear sky, cloudy later.

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

Max 12℃ 53°F
Min 5℃ 40°F

Valley temperatures from an overnight low of 5℃ 40°F to daytime highs around 12℃ 53°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Wed
21

up to 8cm up to 3in New Snow

Lt DrizzleLt DrizzleLt RainShwrs

Light drizzle, light rain showers, rain showers later.

Snow Line from 2,008m 6,588ft to 1,392m 4,567ft , with rain below.

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

Max 8℃ 47°F
Min 2℃ 36°F

Valley temperatures from an overnight low of 2℃ 36°F to daytime highs around 8℃ 47°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Thu
22

up to 3cm up to 1in New Snow

Light SnowLight SnowClearFog

Light snow at altitude, clear sky, fog later.

Snow Line from 1,346m 4,416ft to 1,008m 3,307ft , with rain below.

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

Max 11℃ 52°F
Min 3℃ 37°F

Valley temperatures from an overnight low of 3℃ 37°F to daytime highs around 11℃ 52°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Fri
23

up to 1cm New Snow

FogFogLt DrizzleLt Drizzle

Fog early, then light drizzle later.

Snow Line from 1,469m 4,820ft to 1,362m 4,469ft , with rain below.

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

Max 6℃ 43°F
Min 3℃ 37°F

Valley temperatures from an overnight low of 3℃ 37°F to daytime highs around 6℃ 43°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sat
24

up to 2cm up to 1in New Snow

Lt DrizzleLt DrizzleLt DrizzleSnow

Light drizzle early, then snow showers at altitude later.

Snow Line from 1,577m 5,174ft to 1,085m 3,560ft , with rain below.

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

Max 5℃ 41°F
Min 1℃ 34°F

Valley temperatures from an overnight low of 1℃ 34°F to daytime highs around 5℃ 41°F

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sun
25

up to 8cm up to 3in New Snow

FogHvy DrizzleLt RainSnow

Fog first, heavy drizzle then light rain showers, heavy snow showers at altitude later.

Snow Line from 1,408m 4,619ft to 1,146m 3,760ft , with rain below.

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

Max 4℃ 39°F
Min 3℃ 37°F

Valley temperatures from an overnight low of 3℃ 37°F to daytime highs around 4℃ 39°F

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Mon
26

up to 5cm up to 2in New Snow

Light SnowLight SnowDrizzleLight Snow

Light snow at altitude, drizzle, light snow at altitude later.

Snow Line from 1,269m 4,163ft to 1,069m 3,507ft , with rain below.

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

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 Snow Forecast updated at 08:41 BST, next update expected 14:00 BST.

Snow Forecast near Alt St. Johann

Snow Forecasts for Ski Resorts near Alt St. Johann
Ski Area 48 Hr 7 DayTuWeThFrSaSuMo
Flims 20cm 8in 31cm 12in
Flumserberg 11cm 4in 28cm 11in
Wildhaus 12cm 5in 28cm 11in
Unteriberg 4cm 1in 20cm 8in
Laterns 4cm 1in 14cm 6in
Dunserberg- 8cm 3in

How reliable is the snow in Alt St. Johann?

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.