Grand St Bernard 7-Day Snow Forecast

Grand St Bernard Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 02 May 2026 19:41 NZST

Long-Range Snow Forecast for Grand St Bernard

Long-range (14 to 45 days) from 2 May.

For Forecast detail, see below.

Grand St Bernard Snow Forecast Highlights

When will there be fresh snow in Grand St Bernard?

Grand St Bernard Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,355m)
Next Snow Expected	4 May
Next Snow Amount	3cm
Next 48 Hours	3cm
Next 7 Days	18cm

Long-range Snow Outlook for Grand St Bernard

Snowfall

Snow Line

Max 9℃
Min -2℃

20cm New Snow

Snow Line from 2,264m to resort level (1,910m).

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Grand St Bernard 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 St Bernard from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sat 02	Cloudy.	Max 9℃ Min -1℃
Sun 03	Cloudy.	Max 8℃ Min 0℃
Mon 04	1cm to 2cm New Snow Light snow. Snow Line from 2,110m to resort level (1,910m).	Max 3℃ Min 1℃
Tue 05	5cm to 9cm New Snow Light snow showers at altitude, light rain showers below. Snow Line from 2,125m to resort level (1,910m).	Max 3℃ Min 0℃
Wed 06	2cm to 10cm New Snow Light snow at altitude, light rain showers below. Snow Line from 2,264m to resort level (1,910m).	Max 4℃ Min -2℃
Thu 07	Clear sky.	Max 7℃ Min -2℃
Fri 08	Cloudy.	Max 6℃ Min 1℃

This Snow Forecast for Grand St Bernard, Switzerland 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 St Bernard, 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 St Bernard Snow Forecast updated at 19:41 NZST, next update expected 01:00 NZST.

Ensemble forecast for Grand St Bernard, Switzerland at 1,910m

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 St Bernard

Snow Forecasts for Ski Resorts near Grand St Bernard
Ski Area	48 Hr	7 Day
Sainte-Foy Tarentaise	2cm	16cm
Argentière	4cm	15cm
Chamonix	2cm	14cm
La Rosière	3cm	13cm
Breuil-Cervinia	2cm	12cm
St Gervais Mont-Blanc	2cm	8cm

Snow Reliability

Grand St Bernard boasts reliable snow conditions, typically featuring a snow depth of 100-200 cm. Regular snowfall ensures excellent skiing opportunities throughout the season, but always check J2Ski for the latest snow updates.

Off-Piste Safety in Grand St Bernard

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