Grand Massif 7-Day Snow Forecast

Grand Massif Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

PROSubscribe to Switch Weather Model

Updated 27 September 2026 20:43 NZDT

Long-Range Snow Forecast for Grand Massif

Long-range (14 to 45 days) from 27 September.

For Forecast detail, see below.

Grand Massif Snow Forecast Highlights

When will there be fresh snow in Grand Massif?

Grand Massif Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,600m)
Next Snow?
There is no snow currently in the forecast for Grand Massif.
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Grand Massif

Snowfall

Snow Line

Max 24℃
Min 12℃

Snow unlikely

Partner Offers

Grand Massif 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 Grand Massif from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sun 27	Clear sky.	Max 24℃ Min 13℃
Mon 28	Clear sky.	Max 24℃ Min 13℃
Tue 29	Cloudy.	Max 23℃ Min 13℃
Wed 30	Fair.	Max 24℃ Min 14℃
Thu 01	Cloudy.	Max 21℃ Min 14℃
Fri 02	Cloudy.	Max 19℃ Min 15℃
Sat 03	Cloudy at altitude, light drizzle below.	Max 18℃ Min 12℃

No significant snowfall is forecast for this period.

This Snow Forecast for Grand Massif, 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 Grand Massif, 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.

Grand Massif Snow Forecast updated at 20:43 NZDT, next update expected 02:00 NZDT.

Ensemble forecast for Grand Massif, France at 700m

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 Forecast near Grand Massif

Snow Forecasts for Ski Resorts near Grand Massif
Ski Area	48 Hr	7 Day	Su	Mo	Tu	We	Th	Fr	Sa
Chamonix	-	9cm
Les Arcs	-	1cm

Snow Reliability

Grand Massif typically enjoys a reliable snow depth, with consistent snowfall throughout the season. For the latest snow conditions and updates, be sure to check J2Ski for accurate and timely information.

Off-Piste Safety in Grand Massif

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