St-Luc 7-Day Snow Forecast

St-Luc Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 20 September 2026 04:49 CDT

Long-Range Snow Forecast for St-Luc

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

For Forecast detail, see below.

St-Luc Snow Forecast Highlights

When will there be fresh snow in St-Luc?

St-Luc Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,325m)
Next Snow?
There is no snow currently in the forecast for St-Luc.
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Long-range Snow Outlook for St-Luc

Snowfall

Snow Line

Max 22℃
Min 3℃

Snow unlikely

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St-Luc 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-Luc from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sun 20	Clear sky at altitude, cloudy below.	Max 21℃ Min 4℃
Mon 21	Cloudy.	Max 21℃ Min 5℃
Tue 22	Clear sky.	Max 21℃ Min 4℃
Wed 23	Clear sky.	Max 21℃ Min 3℃
Thu 24	Cloudy at altitude, clear spells below.	Max 18℃ Min 7℃
Fri 25	Clear spells at altitude, fair below.	Max 22℃ Min 3℃
Sat 26	Clear sky.	Max 22℃ Min 7℃

No significant snowfall is forecast for this period.

This Snow Forecast for St-Luc, 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 St-Luc, 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.

St-Luc Snow Forecast updated at 04:49 CDT, next update expected 10:00 CDT.

Ensemble forecast for St-Luc, Switzerland at 1,650m

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.

Switzerland Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

St-Luc typically enjoys a solid snow cover with an average depth of 80-150 cm during peak season. The region receives ample snowfall, ensuring dependable conditions, but for the latest updates, check J2Ski for current snow information.

Off-Piste Safety in St-Luc

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