Grand St Bernard 7-Day Snow Forecast

Grand St Bernard Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 12 June 2026 01:43 PDT

Long-Range Snow Forecast for Grand St Bernard

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

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 (7,726ft)
Next Snow?
There is no snow currently in the forecast for Grand St Bernard.

Long-range Snow Outlook for Grand St Bernard

Snowfall

Snow Line

Max 76°F
Min 40°F

Snow unlikely

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
Fri 12	Fair at altitude, clear sky below.	Max 67°F Min 40°F
Sat 13	Clear sky.	Max 71°F Min 45°F
Sun 14	Cloudy.	Max 68°F Min 47°F
Mon 15	Clear sky.	Max 67°F Min 45°F
Tue 16	Clear sky at altitude, cloudy below.	Max 69°F Min 46°F
Wed 17	Fair at altitude, clear sky below.	Max 74°F Min 47°F
Thu 18	Clear sky.	Max 76°F Min 53°F

No significant snowfall is forecast for this period.

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 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.

Grand St Bernard Snow Forecast updated at 01:43 PDT, next update expected 07:00 PDT.

Ensemble forecast for Grand St Bernard, Switzerland at 6,266ft

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 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.