Grand Massif 7-Day Snow Forecast

Grand Massif Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

PROSubscribe to Switch Weather Model

Updated 12 April 2026 08:43 BST

Long-Range Snow Forecast for Grand Massif

Long-range (14 to 45 days) from 12 April.

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 19℃ 66°F
Min 2℃ 36°F

14cm 5in New Snow

Snow Line from 2,377m 7,799ft to 1,423m 4,669ft , with rain below.

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 12	up to 8cm up to 3in New Snow Light snow at altitude, light rain below. Snow Line from 2,377m 7,799ft to 1,992m 6,535ft , with rain below.	Max 14℃ 58°F Min 10℃ 49°F
Mon 13	up to 6cm up to 2in New Snow Light snow at altitude, light drizzle below. Snow Line from 2,162m 7,093ft to 1,515m 4,970ft , with rain below.	Max 11℃ 52°F Min 7℃ 44°F
Tue 14	Cloudy.	Max 13℃ 56°F Min 6℃ 43°F
Wed 15	Clear sky.	Max 16℃ 61°F Min 2℃ 36°F
Thu 16	Fair.	Max 17℃ 62°F Min 5℃ 40°F
Fri 17	Fair.	Max 18℃ 64°F Min 4℃ 39°F
Sat 18	Clear sky.	Max 19℃ 66°F Min 5℃ 41°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 08:43 BST, next update expected 14:00 BST.

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.

Snow Forecast near Grand Massif

Snow Forecasts for Ski Resorts near Grand Massif
Ski Area	48 Hr	7 Day
Avoriaz	14cm 5in	14cm 5in
La Clusaz	13cm 5in	13cm 5in
Morzine	13cm 5in	13cm 5in
Chamonix	9cm 4in	9cm 4in
Morillon	8cm 3in	8cm 3in
Les Arcs	7cm 3in	7cm 3in
Flaine	6cm 2in	6cm 2in
Les Carroz	5cm 2in	5cm 2in

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.