Alt St. Johann Snow Report and Forecast
Snow Forecast for Alt St. Johann
When will there be fresh snow?
This is the Snow Forecast for Alt St. Johann, Switzerland for 16 days from 5 May.
Updated 05 May 2025 03:37 PDT.
| Next Snow Expected | 5 May |
|---|---|
| Next Snow Amount | 1in |
| Next 48 Hours | 4in |
| Next 7 Days | 5in |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Alt St. Johann.
Forecast for today in Alt St. Johann
Max 46°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 46°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
05
up to 3in New Snow
Light rain early, then rain showers later.
Snow Line from 7,182ft to 4,491ft, with rain below.
Alt St. Johann has 4in new snow forecast in the next 48 hours.
Alt St. Johann Snow Report
| Upper Snow Depths | 31in |
|---|---|
| Snow Conditions | Not Known |
| Last Snow | 24 April |
Alt St. Johann 7-Day Snow Forecast Overview
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| Mon 05 | Tue 06 | Wed 07 | Thu 08 | Fri 09 | Sat 10 | Sun 11 | |
|---|---|---|---|---|---|---|---|
| Wind | |||||||
| 7,421ft | 32°F
 +3in
| 30°F
| 31°F
 +1in
| 33°F
| 34°F
 +1in
| 41°F
 | 46°F
 |
| 5,187ft | 40°F
+1in
| 38°F
| 40°F
| 41°F
| 42°F
| 48°F
 | 53°F
|
| 2,953ft | 46°F
| 47°F
| 46°F
| 47°F
| 48°F
| 51°F
| 58°F
|
| Snow Line | varying 7,182ft | varying 5,804ft | varying 7,215ft | 4,852ft | varying 5,869ft | ||
| Max Town | 46°F | 47°F | 46°F | 47°F | 48°F | 51°F | 58°F |
| Min Town | 41°F | 41°F | 41°F | 40°F | 40°F | 38°F | 38°F |
This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.
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 46°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 46°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
05
up to 3in New Snow
Light rain early, then rain showers later.
Snow Line from 7,182ft to 4,491ft, with rain below.
Max 47°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 47°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Tue
06
Snow unlikely
Light rain first, cloudy then light rain, light rain showers later.
Max 46°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 46°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Wed
07
up to 1in New Snow
Fog early, then light rain later.
Snow Line from 7,215ft to 5,213ft, with rain below.
Max 47°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 47°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Thu
08
Snow unlikely
Light drizzle early, then cloudy later.
Max 48°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 48°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Fri
09
up to 1in New Snow
Fog first, light rain then cloudy, fog later.
Snow Line from 5,869ft to 5,377ft, with rain below.
Max 51°F
Min 38°F
Valley temperatures from an overnight low of 38°F to daytime highs around 51°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sat
10
Snow unlikely
Clear sky, cloudy, clear spells later.
Max 58°F
Min 38°F
Valley temperatures from an overnight low of 38°F to daytime highs around 58°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sun
11
Snow unlikely
Fog, fair, clear spells later.
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 Snow Forecast updated at 03:37 PDT, next update expected imminently.
Snow Forecast near Alt St. Johann
| Snow Report and Forecast | 48 Hr | Mon | Tue | Wed | Thu | Fri | Sat | Sun | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Flims | 10in | 14in | |||||||
| Flumserberg | 3in | 5in | |||||||
| Wildhaus | 3in | 4in | |||||||
| Laterns | 1in | 1in | |||||||
| Unteriberg | 1in | 1in |
Understanding and predicting Snow Conditions in Alt St. Johann
Here are our tips for making the most of a trip to Alt St. Johann, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Alt St. Johann, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.
Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:
Pistes (Groomers) or Off-Piste
These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.
- Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
- Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.
WARNING - skiing off-piste (out-of-bounds) at Alt St. Johann is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.
Analyzing Weather and Snowfall Forecasts
Whilst no forecast can tell you exactly how snow conditions in Alt St. Johann will develop, checking the forecast regularly should give you an idea of what to expect.
New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.
Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.
Predicting Future Snow Quality
Regularly check our snow and weather forecasts for Alt St. Johann for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.
Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.