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Afbeelding - Unterwasser
© Toggenburg Tourismus: swiss-image.ch

What is the weather like in Unterwasser in Switzerland, and what is the forecast for the next few days? Check the current weather forecast for Unterwasser 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 Unterwasser during your winter holiday.

The weather in Unterwasser

On this page, you will find the current weather forecast for Unterwasser, 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 Unterwasser? Read on for all this information!

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48-hour weather forecast for Unterwasser

04 August 2026

Night

Expectation 0 mm

0-degree limit 4244 metres

Overcast

19°C

Zo 2
Morning

Expectation 0 mm

0-degree limit 4340 metres

Bright sunny weather

24°C

Zo 2
Midday

Expectation 1 mm

0-degree limit 4431 metres

Showers with occasional sunshine

31°C

Nno 2
Evening

Expectation 0 mm

0-degree limit 4384 metres

Regular sunshine with some clouds

23°C

Wzw 3

05 August 2026

Night

Expectation 0 mm

0-degree limit 4285 metres

Clouds and clearings

17°C

Wzw 3
Morning

Expectation 0 mm

0-degree limit 4278 metres

Bright sunny weather

22°C

Nnw 2
Midday

Expectation 4 mm

0-degree limit 4383 metres

Heavy showers with occasional sunshine

26°C

Nw 3
Evening

Expectation 3 mm

0-degree limit 4285 metres

Overcast with steady rainfall

21°C

Z 2

04 August 2026

Night

Expectation 0 mm

0-degree limit 4357 metres

Overcast

14°C

Zzw 8
Morning

Expectation 0 mm

0-degree limit 4330 metres

Bright sunny weather

15°C

Zzw 6
Midday

Expectation 1 mm

0-degree limit 4440 metres

Showers with occasional sunshine

18°C

Zzw 7
Evening

Expectation 0 mm

0-degree limit 4417 metres

Regular sunshine with some clouds

15°C

Z 6

05 August 2026

Night

Expectation 0 mm

0-degree limit 4285 metres

Clouds and clearings

13°C

Zzw 6
Morning

Expectation 0 mm

0-degree limit 4276 metres

Bright sunny weather

14°C

Z 5
Midday

Expectation 4 mm

0-degree limit 4350 metres

Heavy showers with occasional sunshine

16°C

Nnw 4
Evening

Expectation 3 mm

0-degree limit 4286 metres

Overcast with steady rainfall

13°C

Nnw 4

14-day weather forecast for Unterwasser

Date

Weather and snow

Expectation

Wind

Frost line

Date

Weather and snow

Expectation

Wind

Frost line

04 August 2026
Bright sunny weather
18°C / 31°C
1 mm
W 2

4244 metres

Date

Weather and snow

Expectation

Wind

Frost line

05 August 2026
Showers with occasional sunshine
17°C / 26°C
7 mm
Nw 3

4238 metres

Date

Weather and snow

Expectation

Wind

Frost line

06 August 2026
Overcast with steady rainfall
17°C / 20°C
13 mm
Nnw 2

3943 metres

Date

Weather and snow

Expectation

Wind

Frost line

07 August 2026
Showers with occasional sunshine
13°C / 20°C
1 mm
Nno 3

3839 metres

Date

Weather and snow

Expectation

Wind

Frost line

08 August 2026
Showers with occasional sunshine
13°C / 24°C
1 mm
N 2

4072 metres

Date

Weather and snow

Expectation

Wind

Frost line

09 August 2026
Heavy showers with occasional thunderstorms
15°C / 26°C
2 mm
Nw 2

4033 metres

Date

Weather and snow

Expectation

Wind

Frost line

10 August 2026
Heavy showers with occasional thunderstorms
15°C / 25°C
4 mm
Nw 2

3976 metres

Date

Weather and snow

Expectation

Wind

Frost line

11 August 2026
Showers with occasional sunshine
15°C / 24°C
3 mm
Nnw 2

3949 metres

Date

Weather and snow

Expectation

Wind

Frost line

12 August 2026
Showers with occasional sunshine
14°C / 25°C
1 mm
Nnw 2

4066 metres

Date

Weather and snow

Expectation

Wind

Frost line

13 August 2026
Showers with occasional sunshine
14°C / 25°C
2 mm
Nnw 2

4092 metres

Date

Weather and snow

Expectation

Wind

Frost line

14 August 2026
Showers with occasional sunshine
14°C / 23°C
4 mm
Nnw 2

3867 metres

Date

Weather and snow

Expectation

Wind

Frost line

15 August 2026
Showers with occasional sunshine
13°C / 22°C
5 mm
Nw 2

3785 metres

Date

Weather and snow

Expectation

Wind

Frost line

16 August 2026
Showers with occasional sunshine
13°C / 22°C
4 mm
Nw 3

3685 metres

Date

Weather and snow

Expectation

Wind

Frost line

17 August 2026
Showers with occasional sunshine
12°C / 22°C
3 mm
Nw 2

3761 metres

Date

Weather and snow

Expectation

Wind

Frost line

04 August 2026
Bright sunny weather
14°C /18°C
1 mm
Zzw 7

4271 metres

Date

Weather and snow

Expectation

Wind

Frost line

05 August 2026
Showers with occasional sunshine
13°C /16°C
7 mm
Z 5

4236 metres

Date

Weather and snow

Expectation

Wind

Frost line

06 August 2026
Overcast with steady rainfall
11°C /12°C
13 mm
Nnw 5

3961 metres

Date

Weather and snow

Expectation

Wind

Frost line

07 August 2026
Showers with occasional sunshine
9°C /11°C
1 mm
Nnw 5

3854 metres

Date

Weather and snow

Expectation

Wind

Frost line

08 August 2026
Showers with occasional sunshine
9°C /13°C
1 mm
Nnw 4

4072 metres

Date

Weather and snow

Expectation

Wind

Frost line

09 August 2026
Heavy showers with occasional thunderstorms
8°C /13°C
2 mm
Zzw 4

4033 metres

Date

Weather and snow

Expectation

Wind

Frost line

10 August 2026
Heavy showers with occasional thunderstorms
9°C /13°C
4 mm
Ozo 4

3976 metres

Date

Weather and snow

Expectation

Wind

Frost line

11 August 2026
Showers with occasional sunshine
8°C /12°C
3 mm
N 5

3949 metres

Date

Weather and snow

Expectation

Wind

Frost line

12 August 2026
Showers with occasional sunshine
8°C /16°C
1 mm
N 4

4066 metres

Date

Weather and snow

Expectation

Wind

Frost line

13 August 2026
Showers with occasional sunshine
8°C /16°C
2 mm
Nnw 4

4092 metres

Date

Weather and snow

Expectation

Wind

Frost line

14 August 2026
Showers with occasional sunshine
8°C /12°C
4 mm
Nnw 4

3867 metres

Date

Weather and snow

Expectation

Wind

Frost line

15 August 2026
Showers with occasional sunshine
7°C /11°C
5 mm
Nnw 4

3785 metres

Date

Weather and snow

Expectation

Wind

Frost line

16 August 2026
Showers with occasional sunshine
6°C /11°C
4 mm
Nnw 5

3685 metres

Date

Weather and snow

Expectation

Wind

Frost line

17 August 2026
Showers with occasional sunshine
6°C /11°C
3 mm
Nw 5

3761 metres

Snow depth in Unterwasser

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 Unterwasser. 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 Unterwasser.

Snow depth on the mountain and in the valley

Mountain: 0 cm

Valley: 0 cm

  • Snow depth valley 0
  • Cross-country ski trails open (km) 0
  • Valley descent open Closed
  • Hiking trails open (km) 0

Pistes Chäserrugg – Unterwasser/​Alt St. Johann

Snow depth valley 0
Number of km 0
Snow depth mountain 0
Number of lifts open 0
Type of snow keine Angabe
Funpark Closed
Latest snowfall
Toboggan run Closed
Set up SnowAlert for Unterwasser

Set up SnowAlert for Unterwasser

With fresh snowfall, receive snow depth updates up to 3 times a week.

Explanation of the weather forecast in Unterwasser

The weather report for Unterwasser 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 Unterwasser. 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.