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Alt St. Johann Snow Forecast - 48 hour - 21st August 2026

Alt St. Johann 48-Hour Snow Forecast

ECMWF IFS
GFS

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Updated 20 August 2026 17:48 PDT

2-Day Forecast for Alt St. Johann

48-hours from 21 August.

See below for forecast detail

Alt St. Johann Snow Forecast updated at 17:48 PDT, next update expected 23:00 PDT.

Forecast for today in Alt St. Johann

Max 61°F
Min 53°F

Valley temperatures from an overnight low of 53°F to daytime highs around 61°F

Temperature at BaseTemp at Base

Fri
21

Snow unlikely

CloudShwrsShwrsMixed

Cloudy, rain showers, clear spells later.

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

Forecast for tomorrow in Alt St. Johann

Max 61°F
Min 51°F

Valley temperatures from an overnight low of 51°F to daytime highs around 61°F

Temperature at BaseTemp at Base

Sat
22

Snow unlikely

Lt DrizzleLt DrizzleLt DrizzleLt Rain

Light drizzle early, then light rain showers later.

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

48-hour Forecast Detail

48 Hour Weather and Snow Forecast for Alt St. Johann from OpenMeteo(ECMWF IFS)
BaseSnow toWeatherTemp
Town
Rain or Snow?
Fri02:00Lt Drizzle

Light drizzle.59°FS
Light
70%
Fri03:00Fair

Fair.59°FS
Calm
60%
Fri04:00Mixed

Clear spells.59°FS
Calm
55%
Fri05:00Fair

Fair.58°FS
Calm
50%
Fri06:00Cloud

Cloudy.57°FS
Light
55%
Fri07:00Cloud

Cloudy.58°FS
Light
60%
Fri08:00Cloud

Cloudy.59°FS
Light
65%
Fri09:00Cloud

Cloudy.60°FS
Light
75%
Fri10:00Drizzle

Drizzle.60°FS
Light
90%
Fri11:00Drizzle

Drizzle.61°FS
Light
100%
Fri12:00Lt Rain

Light rain showers.61°FS
Calm
100%
Fri13:00Shwrs

Rain showers.59°FS
Light
100%
Fri14:00Hvy Shwrs

Heavy rain showers.56°FS
Breeze
100%
Fri15:00Shwrs

Rain showers.56°FS
Light
100%
Fri16:00Lt Rain

Light rain showers.56°FS
Light
100%
Fri17:00Shwrs

Rain showers.55°FS
Light
100%
Fri18:00Drizzle

Drizzle.56°FS
Light
80%
Fri19:00Fair

Fair.56°FS
Light
55%
Fri20:00Mixed

Clear spells.55°FS
Light
35%
Fri21:00Mixed

Clear spells.55°FS
Calm
45%
Fri22:00Lt Drizzle

Light drizzle.54°FS
Light
60%
Fri23:00Lt Rain

Light rain showers.53°FS
Light
75%
Sat00:00Drizzle

Drizzle.52°FW
Light
80%
Sat01:00Drizzle

Drizzle.52°FW
Light
80%
Sat02:00Lt Drizzle

Light drizzle.52°FW
Light
75%
Sat03:00Lt Drizzle

Light drizzle.52°FW
Light
70%
Sat04:00Mixed

Clear spells.52°FW
Light
55%
Sat05:00Lt Drizzle

Light drizzle.53°FW
Light
45%
Sat06:00Lt Drizzle

Light drizzle.51°FW
Light
40%
Sat07:00Lt Drizzle

Light drizzle.52°FW
Light
40%
Sat08:00Lt Drizzle

Light drizzle.53°FW
Light
45%
Sat09:00Fair

Fair.55°FW
Light
55%
Sat10:00Clear

Clear sky.56°FW
Light
75%
Sat11:00Lt Drizzle

Light drizzle.57°FW
Light
90%
Sat12:00Drizzle

Drizzle.56°FW
Light
95%
Sat13:00Lt Drizzle

Light drizzle.58°FW
Light
95%
Sat14:00Lt Drizzle

Light drizzle.60°FW
Light
95%
Sat15:00Lt Drizzle

Light drizzle.61°FW
Light
90%
Sat16:00Lt Drizzle

Light drizzle.61°FW
Light
85%
Sat17:00Drizzle

Drizzle.60°FW
Light
75%
Sat18:00Lt Drizzle

Light drizzle.60°FW
Light
60%
Sat19:00Lt Drizzle

Light drizzle.58°FW
Light
45%
Sat20:00Lt Drizzle

Light drizzle.56°FW
Light
30%
Sat21:00Fair

Fair.55°FW
Calm
20%
Sat22:00Clear

Clear sky.55°FW
Calm
10%
Sat23:00Fair

Fair.54°FW
Calm
0%
Sun00:00Clear

Clear sky.54°FNE
Calm
0%
Sun01:00Clear

Clear sky.52°FNE
Calm
0%

Snow Forecast near Alt St. Johann

Snow forecasts for nearby ski areas.

Snow Forecasts for Ski Resorts near Alt St. Johann
Ski Area 48 Hr 7 DayFrSaSuMoTuWeTh
Flims1in 1in

Alt St. Johann Snow

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

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 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.

Snow Reliability

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.