Trevalli 7-Day Snow Forecast

Trevalli Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 20 September 2026 05:02 CDT

Long-Range Snow Forecast for Trevalli

Long-range (14 to 45 days) from 20 September.

For Forecast detail, see below.

Trevalli Snow Forecast Highlights

When will there be fresh snow in Trevalli?

Trevalli Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,907m)
Next Snow?
There is no snow currently in the forecast for Trevalli.
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Long-range Snow Outlook for Trevalli

Snowfall

Snow Line

Max 21℃
Min 3℃

Snow unlikely

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Trevalli 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 Trevalli from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sun 20	Fair at altitude, light rain showers below.	Max 21℃ Min 7℃
Mon 21	Cloudy.	Max 21℃ Min 8℃
Tue 22	Clear sky.	Max 17℃ Min 3℃
Wed 23	Fair at altitude, clear spells below.	Max 15℃ Min 5℃
Thu 24	Fair at altitude, clear sky below.	Max 18℃ Min 4℃
Fri 25	Clear sky.	Max 17℃ Min 4℃
Sat 26	Clear sky.	Max 19℃ Min 6℃

No significant snowfall is forecast for this period.

This Snow Forecast for Trevalli, Italy 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 Trevalli, on any given piste 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.

Trevalli Snow Forecast updated at 05:02 CDT, next update expected 11:00 CDT.

Ensemble forecast for Trevalli, Italy at 1,300m

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.

Snow Reliability

Trevalli typically enjoys reliable snow conditions, with an average snow depth of 70-100 cm throughout the season. For the latest snow information, be sure to check J2Ski for updates.

Off-Piste Safety in Trevalli

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