Portillo 7-Day Snow Forecast

Portillo Long-Range Snow Forecast Updated today

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Updated 22 October 2026 10:48 PDT

Long-Range Snow Forecast for Portillo

Long-range (14 to 45 days) from 22 October.

For Forecast detail, see below.

Portillo Snow Forecast Highlights

When will there be fresh snow in Portillo?

Portillo Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (9,613ft)
Next Snow Expected	24 October
Next Snow Amount	4in
Next 48 Hours	4in
Next 7 Days	4in

Long-range Snow Outlook for Portillo

Snowfall

Snow Line

Max 54°F
Min 26°F

4in New Snow

Snow Line from 9,478ft to resort level (8,399ft).

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Portillo 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 Portillo from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Thu 22	Light snow at altitude, light drizzle below.	Max 42°F Min 34°F
Fri 23	New Snow Cloudy. Snow Line from 9,478ft to resort level (8,399ft).	Max 41°F Min 35°F
Sat 24	2in to 3in New Snow Snow showers at altitude, light rain below. Snow Line from 9,085ft to resort level (8,399ft).	Max 40°F Min 26°F
Sun 25	Clear sky.	Max 49°F Min 26°F
Mon 26	Rain showers.	Max 48°F Min 40°F
Tue 27	Clear sky.	Max 51°F Min 39°F
Wed 28	Clear sky.	Max 54°F Min 42°F

This Snow Forecast for Portillo, 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 Portillo, 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.

Portillo Snow Forecast updated at 10:48 PDT, next update expected imminently.

Ensemble forecast for Portillo, Chile at 8,399ft

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 Forecast near Portillo

Snow Forecasts for Ski Resorts near Portillo
Ski Area	48 Hr	7 Day	Th	Fr	Sa	Su	Mo	Tu	We
Los Penitentes	1in	1in

How reliable is the snow in Portillo?

Portillo boasts excellent snow reliability, with an average snow depth of 2-3 meters during the peak season. The resort typically experiences consistent snowfall, making it a reliable choice for winter sports; check J2Ski for the latest snow information.

Off-Piste Safety in Portillo

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