St François Longchamp 7-Day Snow Forecast

St François Longchamp Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 11 June 2026 18:42 PDT

Long-Range Snow Forecast for St François Longchamp

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

For Forecast detail, see below.

St François Longchamp Snow Forecast Highlights

When will there be fresh snow in St François Longchamp?

St François Longchamp Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (6,562ft)
Next Snow?
There is no snow currently in the forecast for St François Longchamp.
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Long-range Snow Outlook for St François Longchamp

Snowfall

Snow Line

Max 72°F
Min 37°F

Snow unlikely

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St François Longchamp 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 St François Longchamp from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Fri 12	Clear sky.	Max 62°F Min 39°F
Sat 13	Clear sky.	Max 69°F Min 37°F
Sun 14	Cloudy.	Max 67°F Min 38°F
Mon 15	Clear sky.	Max 67°F Min 44°F
Tue 16	Clear sky.	Max 70°F Min 47°F
Wed 17	Fair.	Max 72°F Min 50°F
Thu 18	Light drizzle.	Max 67°F Min 56°F

No significant snowfall is forecast for this period.

This Snow Forecast for St François Longchamp, 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 St François Longchamp, 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.

St François Longchamp Snow Forecast updated at 18:42 PDT, next update expected imminently.

Ensemble forecast for St François Longchamp, France at 4,757ft

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

The resort typically enjoys 150-200 cm of snow depth, with consistent snowfall from December to April. For the latest snow reports, be sure to check J2Ski for up-to-date information.

Off-Piste Safety in St François Longchamp

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