Siviez 7-Day Snow Forecast

Siviez Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

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Updated 02 May 2026 06:43 PDT

Long-Range Snow Forecast for Siviez

Long-range (14 to 45 days) from 2 May.

For Forecast detail, see below.

Siviez Snow Forecast Highlights

When will there be fresh snow in Siviez?

Siviez Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (7,267ft)
Next Snow Expected	6 May
Next Snow Amount	1in
Next 48 Hours	-
Next 7 Days	1in
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Siviez

Snowfall

Snow Line

Max 60°F
Min 28°F

4in New Snow

Snow Line from 8,602ft to resort level (5,676ft).

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Siviez 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 Siviez from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sat 02	Fair.	Max 60°F Min 34°F
Sun 03	Cloudy.	Max 59°F Min 36°F
Mon 04	New Snow Light snow showers at altitude, light rain showers below. Snow falling to 7,897ft, with rain below.	Max 54°F Min 36°F
Tue 05	Cloudy at altitude, light rain below.	Max 52°F Min 32°F
Wed 06	up to 4in New Snow Snow showers at altitude, light rain below. Snow Line from 8,602ft to resort level (5,676ft).	Max 46°F Min 32°F
Thu 07	New Snow Clear sky. Snow Line from 5,978ft to 5,928ft, with rain below.	Max 51°F Min 36°F
Fri 08	Cloudy at altitude, rain showers below.	Max 54°F Min 28°F

This Snow Forecast for Siviez, 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 Siviez, 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.

Siviez Snow Forecast updated at 06:43 PDT, next update expected 12:00 PDT.

Ensemble forecast for Siviez, Switzerland at 5,676ft

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.

Snow Forecast near Siviez

Snow Forecasts for Ski Resorts near Siviez
Ski Area	48 Hr	7 Day
Verbier	1in	10in
Grimentz	-	9in
Four Valleys	1in	9in
Evolène	-	7in
Argentière	1in	6in
Nendaz	-	6in
Breuil-Cervinia	1in	6in
Bruson	-	4in

Snow Reliability

Siviez boasts reliable snow conditions with an average snow depth of 150 cm during peak season. The region typically experiences good snowfall, but it’s best to check the latest snow info on J2Ski for up-to-date conditions.

Off-Piste Safety in Siviez

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