Antillanca 7-Day Snow Forecast

Antillanca Long-Range Snow Forecast Updated today

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Updated 20 September 2026 16:46 PDT

Long-Range Snow Forecast for Antillanca

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

For Forecast detail, see below.

Antillanca Snow Forecast Highlights

When will there be fresh snow in Antillanca?

Antillanca Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (4,544ft)
Next Snow Expected	21 September
Next Snow Amount	3in
Next 48 Hours	4in
Next 7 Days	5in

Long-range Snow Outlook for Antillanca

Snowfall

Snow Line

Max 46°F
Min 26°F

6in New Snow

Snow Line from 5,541ft to resort level (3,510ft).

Powder Alert!

Powder Alarm issued 20 September 2026 18:52 PDT

Powder Possible :- 4in of Fresh Snow is forecast for Antillanca over the next 2 days.

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Antillanca 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 Antillanca from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Mon 21	3in New Snow Light snow showers. Snow falling to resort level (3,510ft).	Max 35°F Min 27°F
Tue 22	1in New Snow Heavy snow showers at altitude, light rain showers below. Snow Line from 5,541ft to resort level (3,510ft).	Max 32°F Min 26°F
Wed 23	Rain.	Max 41°F Min 32°F
Thu 24	Light rain showers.	Max 44°F Min 40°F
Fri 25	up to 1in New Snow Heavy snow showers at altitude, heavy rain showers below. Snow Line from 5,541ft to 5,344ft, with rain below.	Max 41°F Min 28°F
Sat 26	Light drizzle.	Max 46°F Min 28°F
Sun 27	New Snow Snow showers. Snow Line from 3,606ft to resort level (3,510ft).	Max 44°F Min 37°F

This Snow Forecast for Antillanca, Chile 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 Antillanca, 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.

Antillanca Snow Forecast updated at 16:46 PDT, next update expected 22:00 PDT.

Ensemble forecast for Antillanca, Chile at 3,510ft

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.

Chile Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Antillanca typically enjoys reliable snow conditions with an average snow depth of 1.5 to 3 meters during peak season. Regular snowfall ensures great skiing opportunities, but it's advisable to check the latest snow information on J2Ski for updates.

Off-Piste Safety in Antillanca

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