Zweisimmen 7-Day Snow Forecast

Zweisimmen Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 11 August 2026 12:51 PDT

Long-Range Snow Forecast for Zweisimmen

Long-range (14 to 45 days) from 12 August.

For Forecast detail, see below.

Zweisimmen Snow Forecast Highlights

When will there be fresh snow in Zweisimmen?

Zweisimmen Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (4,839ft)
Next Snow?
There is no snow currently in the forecast for Zweisimmen.
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Long-range Snow Outlook for Zweisimmen

Snowfall

Snow Line

Max 87°F
Min 53°F

Snow unlikely

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Zweisimmen Long-Range (2 weeks+) Snow Forecast Outlook

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.

16 Day Weather and Snow Forecast for Zweisimmen from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Wed 12	Clear sky.	Max 85°F Min 58°F
Thu 13	Clear sky.	Max 86°F Min 60°F
Fri 14	Clear sky.	Max 87°F Min 61°F
Sat 15	Fair.	Max 82°F Min 62°F
Sun 16	Drizzle.	Max 67°F Min 59°F
Mon 17	Light drizzle.	Max 71°F Min 53°F
Tue 18	Light drizzle.	Max 64°F Min 58°F

No significant snowfall is forecast for this period.

This Snow Forecast for Zweisimmen, 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 Zweisimmen, 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.

Zweisimmen Snow Forecast updated at 12:51 PDT, next update expected 18:00 PDT.

Ensemble forecast for Zweisimmen, Switzerland at 3,117ft

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Switzerland Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Zweisimmen enjoys reliable snow conditions, with an average snow depth of around 100 cm in winter. Snowfalls are frequent, but for the latest updates on snow conditions, be sure to check J2Ski.

Off-Piste Safety in Zweisimmen

Before skiing or snowboarding off-piste in Zweisimmen, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.