Las Leñas 7-Day Snow Forecast

Las Leñas Long-Range Snow Forecast Updated today

ECMWF IFS

GEM

GFS

PROSubscribe to Switch Weather Model

Updated 21 March 2026 10:48 AEDT

Long-Range Snow Forecast for Las Leñas

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

For Forecast detail, see below.

Las Leñas Snow Forecast Highlights

When will there be fresh snow in Las Leñas?

Las Leñas Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (2,843m)
Next Snow Expected	22 March
Next Snow Amount	9cm
Next 48 Hours	10cm
Next 7 Days	10cm

Long-range Snow Outlook for Las Leñas

Snowfall

Snow Line

Max 17℃
Min -5℃

10cm New Snow

Snow Line from 2,519m to resort level (2,256m).

Partner Offers

Las Leñas 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 Las Leñas from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Sat 21	Clear sky.	Max 8℃ Min -4℃
Sun 22	3cm to 9cm New Snow Snow showers. Snow Line from 2,519m to resort level (2,256m).	Max 3℃ Min -4℃
Mon 23	Clear sky.	Max 4℃ Min -5℃
Tue 24	Clear sky.	Max 8℃ Min 1℃
Wed 25	Clear sky.	Max 12℃ Min 3℃
Thu 26	Clear sky.	Max 14℃ Min 5℃
Fri 27	Clear sky.	Max 17℃ Min 7℃

This Snow Forecast for Las Leñas, Argentina 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 Las Leñas, 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.

Las Leñas Snow Forecast updated at 10:48 AEDT, next update expected imminently.

Ensemble forecast for Las Leñas, Argentina at 2,256m

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

With an average snow depth of over 2 meters and consistent snowfall, Las Leñas boasts excellent snow reliability. For the latest snow conditions, be sure to check J2Ski for updated information.

Off-Piste Safety in Las Leñas

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