Alpe du Grand Serre 7-Day Snow Forecast

Alpe du Grand Serre Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 20 March 2026 11:46 PDT

Long-Range Snow Forecast for Alpe du Grand Serre

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

For Forecast detail, see below.

Alpe du Grand Serre Snow Forecast Highlights

When will there be fresh snow in Alpe du Grand Serre?

Alpe du Grand Serre Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (5,823ft)
Next Snow Expected	22 March
Next Snow Amount	2in
Next 48 Hours	2in
Next 7 Days	11in

Long-range Snow Outlook for Alpe du Grand Serre

Snowfall

Snow Line

Max 49°F
Min 20°F

9in New Snow

Snow Line from 6,916ft to resort level (4,495ft).

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Alpe du Grand Serre 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 Alpe du Grand Serre from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Fri 20	Clear sky.	Max 49°F Min 27°F
Sat 21	Fair at altitude, clear sky below.	Max 47°F Min 29°F
Sun 22	1in to 2in New Snow Light snow. Snow Line from 4,948ft to resort level (4,495ft).	Max 36°F Min 29°F
Mon 23	Clear sky at altitude, cloudy below.	Max 44°F Min 26°F
Tue 24	Cloudy.	Max 49°F Min 21°F
Wed 25	1in to 2in New Snow Heavy snow showers at altitude, light rain below. Snow Line from 6,916ft to resort level (4,495ft).	Max 45°F Min 23°F
Thu 26	4in to 5in New Snow Heavy snow showers. Snow falling to resort level (4,495ft).	Max 25°F Min 20°F

This Snow Forecast for Alpe du Grand Serre, 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 Alpe du Grand Serre, 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.

Alpe du Grand Serre Snow Forecast updated at 11:46 PDT, next update expected 17:00 PDT.

Ensemble forecast for Alpe du Grand Serre, France at 4,495ft

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 Alpe du Grand Serre

Snow Forecasts for Ski Resorts near Alpe du Grand Serre
Ski Area	48 Hr	7 Day
Vaujany	2in	14in
Chamrousse	3in	13in
Les Deux Alpes	3in	10in
Alpe d'Huez	2in	10in
La Grave	2in	8in
Dévoluy	3in	8in
La Joue du Loup	3in	8in

Snow Reliability

Alpe du Grand Serre typically enjoys reliable snow conditions, with an average snow depth of 150 cm during peak season. The snowfall is consistent, and snowmelt is gradual; for the latest updates, check J2Ski for current snow information.

Off-Piste Safety in Alpe du Grand Serre

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