The Three Valleys 7-Day Snow Forecast

The Three Valleys Long-Range Snow Forecast Updated today

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Updated 31 August 2026 17:46 PDT

Long-Range Snow Forecast for The Three Valleys

Long-range (14 to 45 days) from 1 September.

For Forecast detail, see below.

The Three Valleys Snow Forecast Highlights

When will there be fresh snow in The Three Valleys?

The Three Valleys Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (7,054ft)
Next Snow?
There is no snow currently in the forecast for The Three Valleys.
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Long-range Snow Outlook for The Three Valleys

Snowfall

Snow Line

Max 89°F
Min 44°F

Snow unlikely

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The Three Valleys 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 The Three Valleys from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Tue 01	Clear sky.	Max 73°F Min 44°F
Wed 02	Fair at altitude, clear sky below.	Max 76°F Min 49°F
Thu 03	Fair at altitude, clear sky below.	Max 77°F Min 51°F
Fri 04	Clear sky.	Max 87°F Min 55°F
Sat 05	Fair at altitude, clear sky below.	Max 86°F Min 60°F
Sun 06	Clear sky at altitude, fair below.	Max 89°F Min 62°F
Mon 07	Clear sky.	Max 82°F Min 61°F

This Snow Forecast for The Three Valleys, France 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 The Three Valleys, 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.

The Three Valleys Snow Forecast updated at 17:46 PDT, next update expected 20:00 PDT.

Ensemble forecast for The Three Valleys, France at 3,609ft

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.

France Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

The Three Valleys boasts excellent snow reliability, with an average snow depth of 200 cm and consistent snowfall throughout the season. For the latest snow conditions, check J2Ski for up-to-date information.

Off-Piste Safety in The Three Valleys

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