Portillo Snow Forecast - 7 day
Updated 17 September 2026 21:50 AEST
7-Day Snow Forecast for Portillo
1-week from 17 September.
For Forecast detail, see below.
There is a useful amount of snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Portillo 7-Day Snow Forecast Highlights
When will there be fresh snow in Portillo?
| Next Snow Expected | 19 September |
|---|---|
| Next Snow Amount | 2cm |
| Next 48 Hours | 2cm |
| Next 7 Days | 33cm |
7-Day Snow Outlook for Portillo
Snowfall
Snow Line
Max 12℃
Min 0℃
46cm New Snow
Snow Line from 3,279m to resort level (2,560m).
There is a useful amount of snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Powder Alert!
Powder Alarm issued 18 September 2026 01:48 AEST
Powder Possible :- 33cm of Fresh Snow is forecast for Portillo over the next 3 days.
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Portillo Medium-Range (7-Day) Snow Forecast Detail
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.
Max 12℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 12℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Thu
17
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Portillo are in Santiago (America/Santiago) time zone.
Max 11℃
Min 5℃
Valley temperatures from an overnight low of 5℃ to daytime highs around 11℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Fri
18
up to 1cm New Snow
Cloudy first, fair then clear sky, rain showers later.
Snow falling to 3,269m, with rain below.
Forecast times for Portillo are in Santiago (America/Santiago) time zone.
Max 10℃
Min 1℃
Valley temperatures from an overnight low of 1℃ to daytime highs around 10℃
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
19
up to 9cm New Snow
Clear sky early, then light rain showers later.
Snow Line from 3,059m to 2,889m, with rain below.
Forecast times for Portillo are in Santiago (America/Santiago) time zone.
Max 5℃
Min 0℃
Valley temperatures from an overnight low of 0℃ to daytime highs around 5℃
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sun
20
7cm to 36cm New Snow
Rain first, snow then heavy snow, light drizzle later.
Snow Line from 3,249m to resort level (2,560m).
Forecast times for Portillo are in Santiago (America/Santiago) time zone.
Max 8℃
Min 2℃
Valley temperatures from an overnight low of 2℃ to daytime highs around 8℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Mon
21
Snow unlikely
Light drizzle first, clear sky then light rain showers, light drizzle later.
Forecast times for Portillo are in Santiago (America/Santiago) time zone.
Max 9℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 9℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Fair, rain showers, light drizzle later.
Forecast times for Portillo are in Santiago (America/Santiago) time zone.
Max 7℃
Min 2℃
Valley temperatures from an overnight low of 2℃ to daytime highs around 7℃
Temperature at BaseTemp at Base
Wed
23
Snow unlikely
Light drizzle, cloudy, light drizzle later.
Forecast times for Portillo are in Santiago (America/Santiago) time zone.
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 21:50 AEST, next update expected imminently.
Snow Forecast near Portillo
| Ski Area | 48 Hr | 7 Day | Th | Fr | Sa | Su | Mo | Tu | We |
|---|---|---|---|---|---|---|---|---|---|
| Catedral Alta Patagonia | - | 104cm | |||||||
| Los Penitentes | 5cm | 34cm |
Snow Reliability
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.