Sierra Nevada 7-Day Snow Forecast

Sierra Nevada Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

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Updated 20 March 2026 17:46 PDT

Long-Range Snow Forecast for Sierra Nevada

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

For Forecast detail, see below.

Sierra Nevada Snow Forecast Highlights

When will there be fresh snow in Sierra Nevada?

Sierra Nevada Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (8,858ft)
Next Snow Expected	22 March
Next Snow Amount	1in
Next 48 Hours	1in
Next 7 Days	1in
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Long-range Snow Outlook for Sierra Nevada

Snowfall

Snow Line

Max 50°F
Min 28°F

2in New Snow

Snow Line from 9,111ft to 7,041ft, with rain below.

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Sierra Nevada 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 Sierra Nevada from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sat 21	New Snow Light snow at altitude, light drizzle below. Snow Line from 8,353ft to 7,192ft, with rain below.	Max 40°F Min 30°F
Sun 22	up to 1in New Snow Cloudy. Snow Line from 8,406ft to 7,648ft, with rain below.	Max 40°F Min 31°F
Mon 23	New Snow Fair. Snow Line from 8,907ft to 7,041ft, with rain below.	Max 43°F Min 28°F
Tue 24	New Snow Cloudy. Snow Line from 9,111ft to 8,757ft, with rain below.	Max 43°F Min 32°F
Wed 25	Clear sky.	Max 49°F Min 31°F
Thu 26	Clear sky.	Max 50°F Min 37°F
Fri 27	Clear sky.	Max 42°F Min 31°F

This Snow Forecast for Sierra Nevada, Spain 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 Sierra Nevada, 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.

Sierra Nevada Snow Forecast updated at 17:46 PDT, next update expected imminently.

Ensemble forecast for Sierra Nevada, Spain at 6,890ft

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.

Spain Hotels Map

Snow Reliability

Sierra Nevada generally enjoys reliable snow conditions, with an average snow depth of around 1-2 meters during peak season. For the latest snow information, including current conditions and forecasts, check J2Ski.

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Off-Piste Safety in Sierra Nevada

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

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