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
20 December 2025
Night
Expectation 0 mm
0-degree limit 2603 metres
4°C
Morning
Expectation 0 mm
0-degree limit 2663 metres
4°C
Midday
Expectation 0 mm
0-degree limit 2584 metres
8°C
Evening
Expectation 0 mm
0-degree limit 2493 metres
5°C
21 December 2025
Night
Expectation 0 mm
0-degree limit 2579 metres
4°C
Morning
Expectation 0 mm
0-degree limit 2700 metres
5°C
Midday
Expectation 0 mm
0-degree limit 2711 metres
10°C
Evening
Expectation 0 mm
0-degree limit 2989 metres
6°C
20 December 2025
Night
Expectation 0 mm
0-degree limit 2561 metres
-1°C
Morning
Expectation 0 mm
0-degree limit 2651 metres
-1°C
Midday
Expectation 0 mm
0-degree limit 2577 metres
1°C
Evening
Expectation 0 mm
0-degree limit 2486 metres
0°C
21 December 2025
Night
Expectation 0 mm
0-degree limit 2498 metres
0°C
Morning
Expectation 0 mm
0-degree limit 2627 metres
0°C
Midday
Expectation 0 mm
0-degree limit 2636 metres
0°C
Evening
Expectation 0 mm
0-degree limit 2815 metres
-1°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
2511 metres
Date
Weather and snow
Expectation
Wind
Frost line
2518 metres
Date
Weather and snow
Expectation
Wind
Frost line
2702 metres
Date
Weather and snow
Expectation
Wind
Frost line
2006 metres
Date
Weather and snow
Expectation
Wind
Frost line
1070 metres
Date
Weather and snow
Expectation
Wind
Frost line
689 metres
Date
Weather and snow
Expectation
Wind
Frost line
516 metres
Date
Weather and snow
Expectation
Wind
Frost line
436 metres
Date
Weather and snow
Expectation
Wind
Frost line
406 metres
Date
Weather and snow
Expectation
Wind
Frost line
420 metres
Date
Weather and snow
Expectation
Wind
Frost line
460 metres
Date
Weather and snow
Expectation
Wind
Frost line
452 metres
Date
Weather and snow
Expectation
Wind
Frost line
445 metres
Date
Weather and snow
Expectation
Wind
Frost line
452 metres
Date
Weather and snow
Expectation
Wind
Frost line
2508 metres
Date
Weather and snow
Expectation
Wind
Frost line
2476 metres
Date
Weather and snow
Expectation
Wind
Frost line
2593 metres
Date
Weather and snow
Expectation
Wind
Frost line
2006 metres
Date
Weather and snow
Expectation
Wind
Frost line
1070 metres
Date
Weather and snow
Expectation
Wind
Frost line
689 metres
Date
Weather and snow
Expectation
Wind
Frost line
516 metres
Date
Weather and snow
Expectation
Wind
Frost line
436 metres
Date
Weather and snow
Expectation
Wind
Frost line
406 metres
Date
Weather and snow
Expectation
Wind
Frost line
420 metres
Date
Weather and snow
Expectation
Wind
Frost line
460 metres
Date
Weather and snow
Expectation
Wind
Frost line
452 metres
Date
Weather and snow
Expectation
Wind
Frost line
445 metres
Date
Weather and snow
Expectation
Wind
Frost line
452 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: 70 cm
Valley: 10 cm
- Snow depth valley 10
- Cross-country ski trails open (km) 0
- Valley descent open Closed
- 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.