Les Arcs 7-Day Snow Forecast

Les Arcs Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 22 September 2026 19:43 CDT

Long-Range Snow Forecast for Les Arcs

Long-range (14 to 45 days) from 23 September.

For Forecast detail, see below.

Les Arcs Snow Forecast Highlights

When will there be fresh snow in Les Arcs?

Les Arcs Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,415m)
Next Snow?
There is no snow currently in the forecast for Les Arcs.
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Long-range Snow Outlook for Les Arcs

Snowfall

Snow Line

Max 23℃
Min 5℃

Snow unlikely

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Les Arcs 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 Les Arcs from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Wed 23	Clear sky.	Max 18℃ Min 6℃
Thu 24	Cloudy.	Max 19℃ Min 5℃
Fri 25	Clear spells.	Max 19℃ Min 6℃
Sat 26	Clear sky.	Max 20℃ Min 7℃
Sun 27	Clear sky.	Max 21℃ Min 6℃
Mon 28	Fair.	Max 23℃ Min 8℃
Tue 29	Fair at altitude, clear sky below.	Max 22℃ Min 7℃

This Snow Forecast for Les Arcs, 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 Les Arcs, on any given piste 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.

Les Arcs Snow Forecast updated at 19:43 CDT, next update expected 22:00 CDT.

Ensemble forecast for Les Arcs, France at 1,600m

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 Reliability

Les Arcs enjoys reliable snow conditions, with an average snow depth of 150 cm during peak season and consistent snowfall throughout winter. For the latest snow conditions, check J2Ski for up-to-date information.

Off-Piste Safety in Les Arcs

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