Grand Massif 7-Day Snow Forecast

Grand Massif Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

PROSubscribe to Switch Weather Model

Updated 20 March 2026 18:44 GMT

Long-Range Snow Forecast for Grand Massif

Long-range (14 to 45 days) from 20 March.

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 Expected	22 March
Next Snow Amount	3cm 1in
Next 48 Hours	3cm 1in
Next 7 Days	24cm 9in
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Grand Massif

Snowfall

Snow Line

Max 12℃ 54°F
Min -2℃ 28°F

32cm 13in New Snow

Snow Line from 1,808m 5,932ft to resort level ( 700m 2,297ft ).

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
Fri 20	Clear sky.	Max 12℃ 53°F Min 1℃ 35°F
Sat 21	Clear sky.	Max 11℃ 52°F Min 1℃ 34°F
Sun 22	up to 7cm up to 3in New Snow Patchy heavy snow at altitude, heavy rain showers below. Snow Line from 1,362m 4,469ft to 792m 2,598ft , with rain below.	Max 7℃ 45°F Min 0℃ 32°F
Mon 23	Clear sky.	Max 12℃ 53°F Min -2℃ 28°F
Tue 24	Cloudy.	Max 12℃ 54°F Min -1℃ 29°F
Wed 25	3cm to 7cm 1in to 3in New Snow Snow showers at altitude, heavy rain showers below. Snow Line from 1,808m 5,932ft to resort level ( 700m 2,297ft ).	Max 10℃ 50°F Min -1℃ 31°F
Thu 26	10cm to 19cm 4in to 7in New Snow Heavy snow at altitude, heavy rain showers below. Snow falling to resort level ( 700m 2,297ft ).	Max 1℃ 34°F Min -2℃ 28°F

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 18:44 GMT, next update expected 00:00 GMT.

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 Hotels Map

Snow Forecast near Grand Massif

Snow Forecasts for Ski Resorts near Grand Massif
Ski Area	48 Hr	7 Day
Avoriaz	7cm 3in	40cm 16in
Les Gets	7cm 3in	40cm 16in
Morzine	7cm 3in	40cm 16in
Samoëns	4cm 2in	40cm 16in
Sixt Fer à Cheval	4cm 2in	40cm 16in
Morillon	4cm 2in	39cm 15in
Chamonix	5cm 2in	38cm 15in
Flaine	4cm 2in	38cm 15in

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.