What is the weather like in Alt St. Johann in Switzerland, and what is the forecast for the next few days? Check the current weather forecast for Alt St. Johann on this page. Here, you will find the weather forecast for the next 48 hours as well as the next 14 days, so you’ll know exactly what to expect and what the weather will be like in Alt St. Johann during your winter holiday.
The weather in Alt St. Johann
On this page, you will find the current weather forecast for Alt St. Johann, located in the ski resort of Toggenburg in Switzerland. Check the forecast and temperature for both the valley and the mountain. This will help you see what conditions will be like on the slopes and whether you need to add an extra layer for the day’s skiing. Will snow be in the forecast, or will the sun be shining? And what about the wind? How high is the frost line (0-degree limit), and what is the current snow depth in Alt St. Johann? Read on for all this information!
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48-hour weather forecast for Alt St. Johann
21 February 2026
Night
Expectation 2 mm
0-degree limit 1338 metres
1°C
Morning
Expectation 6 mm
0-degree limit 1390 metres
1°C
Midday
Expectation 12 mm
0-degree limit 1670 metres
3°C
Evening
Expectation 5 mm
0-degree limit 1731 metres
4°C
22 February 2026
Night
Expectation 0 mm
0-degree limit 1988 metres
1°C
Morning
Expectation 0 mm
0-degree limit 2191 metres
3°C
Midday
Expectation 0 mm
0-degree limit 2387 metres
7°C
Evening
Expectation 1 mm
0-degree limit 1956 metres
4°C
21 February 2026
Night
Expectation 2 cm
0-degree limit 1313 metres
-6°C
Morning
Expectation 6 cm
0-degree limit 1440 metres
-4°C
Midday
Expectation 12 cm
0-degree limit 1681 metres
-3°C
Evening
Expectation 5 cm
0-degree limit 1745 metres
-2°C
22 February 2026
Night
Expectation 0 mm
0-degree limit 1936 metres
-4°C
Morning
Expectation 0 mm
0-degree limit 2179 metres
-2°C
Midday
Expectation 0 mm
0-degree limit 2429 metres
0°C
Evening
Expectation 1 cm
0-degree limit 1999 metres
-2°C
14-day weather forecast for Alt St. Johann
Date
Weather and snow
Expectation
Wind
Frost line
Date
Weather and snow
Expectation
Wind
Frost line
1257 metres
Date
Weather and snow
Expectation
Wind
Frost line
1739 metres
Date
Weather and snow
Expectation
Wind
Frost line
1757 metres
Date
Weather and snow
Expectation
Wind
Frost line
2029 metres
Date
Weather and snow
Expectation
Wind
Frost line
2790 metres
Date
Weather and snow
Expectation
Wind
Frost line
2354 metres
Date
Weather and snow
Expectation
Wind
Frost line
1902 metres
Date
Weather and snow
Expectation
Wind
Frost line
1539 metres
Date
Weather and snow
Expectation
Wind
Frost line
1408 metres
Date
Weather and snow
Expectation
Wind
Frost line
1420 metres
Date
Weather and snow
Expectation
Wind
Frost line
1512 metres
Date
Weather and snow
Expectation
Wind
Frost line
1543 metres
Date
Weather and snow
Expectation
Wind
Frost line
1274 metres
Date
Weather and snow
Expectation
Wind
Frost line
1251 metres
Date
Weather and snow
Expectation
Wind
Frost line
1311 metres
Date
Weather and snow
Expectation
Wind
Frost line
1783 metres
Date
Weather and snow
Expectation
Wind
Frost line
1814 metres
Date
Weather and snow
Expectation
Wind
Frost line
2014 metres
Date
Weather and snow
Expectation
Wind
Frost line
2790 metres
Date
Weather and snow
Expectation
Wind
Frost line
2354 metres
Date
Weather and snow
Expectation
Wind
Frost line
1902 metres
Date
Weather and snow
Expectation
Wind
Frost line
1539 metres
Date
Weather and snow
Expectation
Wind
Frost line
1408 metres
Date
Weather and snow
Expectation
Wind
Frost line
1420 metres
Date
Weather and snow
Expectation
Wind
Frost line
1512 metres
Date
Weather and snow
Expectation
Wind
Frost line
1543 metres
Date
Weather and snow
Expectation
Wind
Frost line
1274 metres
Date
Weather and snow
Expectation
Wind
Frost line
1251 metres
Snow depth in Alt St. Johann
Snow is what makes a ski holiday special. Ideally, we wake up every day to Kaiser weather: a layer of fresh snow, bright sunshine, and a clear blue sky. However, icy temperatures and heavy snowfalls are also part of the experience. Or those foggy days when you ski from hut to hut, warming up with a cup of coffee, tea, or hot chocolate. When it comes to winter sports, the weather can be unpredictable, and nothing changes more rapidly than mountain weather. In addition to the forecast for the coming days, the current snow depth is a key part of the weather report in Alt St. Johann. How much snow is there on the mountain and in the valley of the Toggenburg ski area? Check the table below to see the current snow depth in Alt St. Johann.
Snow depth on the mountain and in the valley
Mountain: 180 cm
Valley: 30 cm
- Snow depth valley 30
- Cross-country ski trails open (km) 12
- Valley descent open Open
- Hiking trails open (km) 0
Pistes Chäserrugg – Unterwasser/Alt St. Johann
Set up SnowAlert for Alt St. Johann
Explanation of the weather forecast in Alt St. Johann
The weather report for Alt St. Johann is updated daily and is carefully compiled by meteorologists working with Snowplaza. Curious about the forecast for the next two days? Check out the 48-hour weather forecast, which provides information for the morning, afternoon, evening, and night. The symbols indicate whether snow or rain is expected, whether it will be cloudy, or if the sun will be shining. Click on "village" to see the weather conditions in the valley, and on "mountain" for forecasts at higher altitudes. The zero-degree line indicates the frost line, which changes depending on the temperature. Don't confuse it with the snowline—snow can still fall several hundred meters below the zero-degree line. For a longer-term outlook, check the 14-day weather forecast for Alt St. Johann. Keep in mind that weather conditions can change dramatically over two weeks, so be sure to check back daily if you're planning a winter sports trip soon.