Lac Blanc 7-Day Snow Forecast

Lac Blanc Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 21 March 2026 23:44 AEDT

Long-Range Snow Forecast for Lac Blanc

Long-range (14 to 45 days) from 21 March.

For Forecast detail, see below.

Lac Blanc Snow Forecast Highlights

When will there be fresh snow in Lac Blanc?

Lac Blanc Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,033m)
Next Snow Expected	25 March
Next Snow Amount	1cm
Next 48 Hours	-
Next 7 Days	6cm

Long-range Snow Outlook for Lac Blanc

Snowfall

Snow Line

Max 12℃
Min -5℃

5cm New Snow

Snow Line from 938m to resort level (830m).

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Lac Blanc 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 Lac Blanc from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sat 21	Cloudy.	Max 9℃ Min 2℃
Sun 22	Cloudy.	Max 9℃ Min 0℃
Mon 23	Fair.	Max 10℃ Min 1℃
Tue 24	Cloudy.	Max 12℃ Min 3℃
Wed 25	1cm New Snow Light snow. Snow Line from 938m to resort level (830m).	Max 5℃ Min -2℃
Thu 26	3cm New Snow Light snow. Snow falling to resort level (830m).	Max 1℃ Min -3℃
Fri 27	1cm New Snow Light snow. Snow falling to resort level (830m).	Max -2℃ Min -5℃

This Snow Forecast for Lac Blanc, 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 Lac Blanc, 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.

Lac Blanc Snow Forecast updated at 23:44 AEDT, next update expected 02:00 AEDT.

Ensemble forecast for Lac Blanc, France at 830m

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 Lac Blanc

Snow Forecasts for Ski Resorts near Lac Blanc
Ski Area	48 Hr	7 Day
Gérardmer	-	8cm
Bussang	-	7cm
La Bresse Hohneck	-	7cm
Le Markstein	-	7cm
Rouge Gazon	-	7cm
St Maurice sur Moselle	-	6cm
Ventron	-	5cm

Snow Reliability

Lac Blanc typically enjoys reliable snow conditions, with an average snow depth of around 70 cm during peak season. For the latest snow information, be sure to check J2Ski.

Off-Piste Safety in Lac Blanc

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