Cerro Castor Snow Forecast - 7 day
Updated 20 September 2026 11:44 PDT
7-Day Snow Forecast for Cerro Castor
1-week from 20 September.
For Forecast detail, see below.
There is some 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.
Cerro Castor 7-Day Snow Forecast Highlights
When will there be fresh snow in Cerro Castor?
| Next Snow Expected | 20 September |
|---|---|
| Next Snow Amount | 1in |
| Next 48 Hours | 1in |
| Next 7 Days | 4in |
7-Day Snow Outlook for Cerro Castor
Snowfall
Snow Line
Max 43°F
Min 20°F
4in New Snow
Snow Line from 1,145ft to resort level (640ft).
There is some 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.
Cerro Castor 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 33°F
Min 22°F
Valley temperatures from an overnight low of 22°F to daytime highs around 33°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sun
20
1in New Snow
Light snow showers, snow showers, cloudy later.
Snow falling to resort level (640ft).
Forecast times for Cerro Castor are in Buenos Aires (America/Argentina/Buenos_Aires) time zone.
Max 38°F
Min 20°F
Freeze-thaw conditions, with valley temperatures cooling to 20°F and rising to 38°F
Temperature at BaseTemp at Base
Mon
21
Snow unlikely
Cloudy early, then clear sky later.
Forecast times for Cerro Castor are in Buenos Aires (America/Argentina/Buenos_Aires) time zone.
Max 39°F
Min 22°F
Freeze-thaw conditions, with valley temperatures cooling to 22°F and rising to 39°F
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Cerro Castor are in Buenos Aires (America/Argentina/Buenos_Aires) time zone.
Max 40°F
Min 25°F
Freeze-thaw conditions, with valley temperatures cooling to 25°F and rising to 40°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Wed
23
up to 1in New Snow
Cloudy, clear sky, cloudy later.
Snow Line from 915ft to resort level (640ft).
Forecast times for Cerro Castor are in Buenos Aires (America/Argentina/Buenos_Aires) time zone.
Max 40°F
Min 26°F
Freeze-thaw conditions, with valley temperatures cooling to 26°F and rising to 40°F
Temperature at BaseTemp at Base
Thu
24
Snow unlikely
Light snow early, then clear sky later.
Forecast times for Cerro Castor are in Buenos Aires (America/Argentina/Buenos_Aires) time zone.
Max 43°F
Min 27°F
Freeze-thaw conditions, with valley temperatures cooling to 27°F and rising to 43°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Fri
25
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Cerro Castor are in Buenos Aires (America/Argentina/Buenos_Aires) time zone.
Max 38°F
Min 32°F
Valley temperatures from an overnight low of 32°F to daytime highs around 38°F
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
26
up to 2in New Snow
Light snow early, then light snow at altitude later.
Snow Line from 1,145ft to resort level (640ft).
Forecast times for Cerro Castor are in Buenos Aires (America/Argentina/Buenos_Aires) time zone.
This Snow Forecast for Cerro Castor, 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 Cerro Castor, 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.
Cerro Castor Snow Forecast updated at 11:44 PDT, next update expected 17:00 PDT.
Snow Reliability
Cerro Castor typically enjoys a snow depth of 50-100 cm, with reliable snowfall from June to October. For the latest snow conditions, check J2Ski for up-to-date information.